One would assume your interpretation would be correct that the first foul committed after the corner would be the outcome of the review. It would certainly help fans if the referee/VAR crew provided explanations, at the very least, post match, as to their review process and how decision was arrived at. Of course such an act would/could be quite embarrassing for the officials. It wasn’t just a little tug. As you state blatantly 2 handfuls, stopping him from moving.