I had to change the first 0 of the makeInstance to the id of the page for it to work.
$id = \TYPO3\CMS\Core\Utility\GeneralUtility::_GP('id');
$TSFE = \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance('TYPO3\CMS\Frontend\Controller\TypoScriptFrontendController', $TYPO3_CONF_VARS, $id, 0);