Just another couple of comments - if you watch the position of the L, he ends up inside the lane, and I believe he and the C were probably straight-lined on the push. It's very possible neither one saw the actual push, only the result of the player going OOB.
Also, and this might belong in the Stupid Announcer Comments thread, Jay Bilas was on the radio this morning and mentioned he thought the Xavier player flopped. Hmm, maybe
that explains why the intentional wasn't called.