Yeah that's where I saw it as well but I can't seem to find that particular clip online. The highlight video I linked shows the play in question but definitely not the angle they showed in the Finebaum segment.
There was a view shown with a sideline camera (basically right in front of Booker) during some extended highlights of the game on the SEC Network earlier today. It clearly showed him stepping out. I can't seem to find that particular highlight anywhere online however.
There's a better view...