diff --git a/Classes/Controller/BackendController.php b/Classes/Controller/BackendController.php
index c785ddc95b..2016cc38d2 100644
--- a/Classes/Controller/BackendController.php
+++ b/Classes/Controller/BackendController.php
@@ -151,14 +151,11 @@ public function indexAction(string $node = null)
         }
         $contentGraph = $contentRepository->getContentGraph($workspace->workspaceName);
 
-        $backendControllerInternals = $this->contentRepositoryRegistry->buildService(
-            $siteDetectionResult->contentRepositoryId,
-            new BackendControllerInternalsFactory()
-        );
-        $defaultDimensionSpacePoint = $backendControllerInternals->getDefaultDimensionSpacePoint();
+        $rootDimensionSpacePoints = $contentRepository->getVariationGraph()->getRootGeneralizations();
+        $arbitraryRootDimensionSpacePoint = array_shift($rootDimensionSpacePoints);
 
         $subgraph = $contentGraph->getSubgraph(
-            $nodeAddress ? $nodeAddress->dimensionSpacePoint : $defaultDimensionSpacePoint,
+            $nodeAddress ? $nodeAddress->dimensionSpacePoint : $arbitraryRootDimensionSpacePoint,
             VisibilityConstraints::withoutRestrictions()
         );
 
@@ -170,7 +167,7 @@ public function indexAction(string $node = null)
         if (!$rootNodeAggregate) {
             throw new \RuntimeException(sprintf('No sites root node found in content repository "%s", while fetching site node "%s"', $contentRepository->id->value, $siteDetectionResult->siteNodeName->value), 1724849303);
         }
-        $rootNode = $rootNodeAggregate->getNodeByCoveredDimensionSpacePoint($defaultDimensionSpacePoint);
+        $rootNode = $rootNodeAggregate->getNodeByCoveredDimensionSpacePoint($arbitraryRootDimensionSpacePoint);
 
         $siteNode = $subgraph->findNodeByPath(
             $siteDetectionResult->siteNodeName->toNodeName(),
diff --git a/Classes/Controller/BackendControllerInternals.php b/Classes/Controller/BackendControllerInternals.php
deleted file mode 100644
index 21f55a0a99..0000000000
--- a/Classes/Controller/BackendControllerInternals.php
+++ /dev/null
@@ -1,38 +0,0 @@
-<?php
-
-/*
- * This file is part of the Neos.Neos package.
- *
- * (c) Contributors of the Neos Project - www.neos.io
- *
- * This package is Open Source Software. For the full copyright and license
- * information, please view the LICENSE file which was distributed with this
- * source code.
- */
-
-declare(strict_types=1);
-
-namespace Neos\Neos\Ui\Controller;
-
-use Neos\ContentRepository\Core\DimensionSpace\DimensionSpacePoint;
-use Neos\ContentRepository\Core\DimensionSpace\InterDimensionalVariationGraph;
-use Neos\ContentRepository\Core\Factory\ContentRepositoryServiceInterface;
-
-/**
- * @deprecated really un-nice :D
- * @internal
- */
-class BackendControllerInternals implements ContentRepositoryServiceInterface
-{
-    public function __construct(
-        private readonly InterDimensionalVariationGraph $interDimensionalVariationGraph,
-    ) {
-    }
-
-    public function getDefaultDimensionSpacePoint(): DimensionSpacePoint
-    {
-        $rootDimensionSpacePoints = $this->interDimensionalVariationGraph->getRootGeneralizations();
-        $arbitraryRootDimensionSpacePoint = array_shift($rootDimensionSpacePoints);
-        return $arbitraryRootDimensionSpacePoint;
-    }
-}
diff --git a/Classes/Controller/BackendControllerInternalsFactory.php b/Classes/Controller/BackendControllerInternalsFactory.php
deleted file mode 100644
index bb9bf3752b..0000000000
--- a/Classes/Controller/BackendControllerInternalsFactory.php
+++ /dev/null
@@ -1,34 +0,0 @@
-<?php
-
-/*
- * This file is part of the Neos.Neos package.
- *
- * (c) Contributors of the Neos Project - www.neos.io
- *
- * This package is Open Source Software. For the full copyright and license
- * information, please view the LICENSE file which was distributed with this
- * source code.
- */
-
-declare(strict_types=1);
-
-namespace Neos\Neos\Ui\Controller;
-
-use Neos\ContentRepository\Core\Factory\ContentRepositoryServiceFactoryDependencies;
-use Neos\ContentRepository\Core\Factory\ContentRepositoryServiceFactoryInterface;
-
-/**
- * @deprecated
- * @implements ContentRepositoryServiceFactoryInterface<BackendControllerInternals>
- * @internal
- */
-class BackendControllerInternalsFactory implements ContentRepositoryServiceFactoryInterface
-{
-    public function build(
-        ContentRepositoryServiceFactoryDependencies $serviceFactoryDependencies
-    ): BackendControllerInternals {
-        return new BackendControllerInternals(
-            $serviceFactoryDependencies->interDimensionalVariationGraph
-        );
-    }
-}
diff --git a/Classes/Fusion/Helper/ContentDimensionsHelper.php b/Classes/Fusion/Helper/ContentDimensionsHelper.php
index de1f90591c..b2f2da6ddf 100644
--- a/Classes/Fusion/Helper/ContentDimensionsHelper.php
+++ b/Classes/Fusion/Helper/ContentDimensionsHelper.php
@@ -36,10 +36,8 @@ class ContentDimensionsHelper implements ProtectedContextAwareInterface
      */
     public function contentDimensionsByName(ContentRepositoryId $contentRepositoryId): array
     {
-        $contentDimensionHelperInternals = $this->contentRepositoryRegistry->buildService($contentRepositoryId, new ContentDimensionsHelperInternalsFactory());
-        assert($contentDimensionHelperInternals instanceof ContentDimensionsHelperInternals);
-        $contentDimensionSource = $contentDimensionHelperInternals->contentDimensionSource;
-
+        $contentDimensionSource = $this->contentRepositoryRegistry->get($contentRepositoryId)
+            ->getContentDimensionSource();
         $dimensions = $contentDimensionSource->getContentDimensionsOrderedByPriority();
 
         $result = [];
@@ -72,8 +70,8 @@ public function contentDimensionsByName(ContentRepositoryId $contentRepositoryId
      */
     public function allowedPresetsByName(DimensionSpacePoint $dimensions, ContentRepositoryId $contentRepositoryId): array|object
     {
-        $contentDimensionHelperInternals = $this->contentRepositoryRegistry->buildService($contentRepositoryId, new ContentDimensionsHelperInternalsFactory());
-        $contentDimensionSource = $contentDimensionHelperInternals->contentDimensionSource;
+        $contentDimensionSource = $this->contentRepositoryRegistry->get($contentRepositoryId)
+            ->getContentDimensionSource();
 
         // TODO: re-implement this here; currently EVERYTHING is allowed!!
         $allowedPresets = [];
diff --git a/Classes/Fusion/Helper/ContentDimensionsHelperInternals.php b/Classes/Fusion/Helper/ContentDimensionsHelperInternals.php
deleted file mode 100644
index 8aa3e78206..0000000000
--- a/Classes/Fusion/Helper/ContentDimensionsHelperInternals.php
+++ /dev/null
@@ -1,28 +0,0 @@
-<?php
-
-namespace Neos\Neos\Ui\Fusion\Helper;
-
-/*
- * This file is part of the Neos.Neos.Ui package.
- *
- * (c) Contributors of the Neos Project - www.neos.io
- *
- * This package is Open Source Software. For the full copyright and license
- * information, please view the LICENSE file which was distributed with this
- * source code.
- */
-
-use Neos\ContentRepository\Core\Dimension\ContentDimensionSourceInterface;
-use Neos\ContentRepository\Core\Factory\ContentRepositoryServiceInterface;
-
-/**
- * @deprecated ugly - we want to get rid of this by adding dimension infos in the Subgraph
- * @todo EEL helpers are still to be declared as internal
- */
-class ContentDimensionsHelperInternals implements ContentRepositoryServiceInterface
-{
-    public function __construct(
-        public readonly ContentDimensionSourceInterface $contentDimensionSource
-    ) {
-    }
-}
diff --git a/Classes/Fusion/Helper/ContentDimensionsHelperInternalsFactory.php b/Classes/Fusion/Helper/ContentDimensionsHelperInternalsFactory.php
deleted file mode 100644
index 79296fff9a..0000000000
--- a/Classes/Fusion/Helper/ContentDimensionsHelperInternalsFactory.php
+++ /dev/null
@@ -1,30 +0,0 @@
-<?php
-
-namespace Neos\Neos\Ui\Fusion\Helper;
-
-/*
- * This file is part of the Neos.Neos.Ui package.
- *
- * (c) Contributors of the Neos Project - www.neos.io
- *
- * This package is Open Source Software. For the full copyright and license
- * information, please view the LICENSE file which was distributed with this
- * source code.
- */
-
-use Neos\ContentRepository\Core\Factory\ContentRepositoryServiceFactoryDependencies;
-use Neos\ContentRepository\Core\Factory\ContentRepositoryServiceFactoryInterface;
-use Neos\ContentRepository\Core\Factory\ContentRepositoryServiceInterface;
-
-/**
- * @deprecated ugly - we want to get rid of this by adding dimension infos in the Subgraph
- * @implements ContentRepositoryServiceFactoryInterface<ContentDimensionsHelperInternals>
- * @todo EEL helpers are still to be declared as internal
- */
-class ContentDimensionsHelperInternalsFactory implements ContentRepositoryServiceFactoryInterface
-{
-    public function build(ContentRepositoryServiceFactoryDependencies $serviceFactoryDependencies): ContentDimensionsHelperInternals
-    {
-        return new ContentDimensionsHelperInternals($serviceFactoryDependencies->contentDimensionSource);
-    }
-}