I had to see the slow-mo to watch if it was an open hand attempt to push away the defensive hands, or a balled up fist-punch. Unquestionably a punch. Not called. Moving on.
As others point out, we had many, many issues on defense stopping LSU. Address those and an extra 5 yds on the run vs a 15 yd personal foul penalty against LF7 doesn't matter for much.
What does bother me is him indicating our players were doing the fingers-to-the-eyes thing. I get that it's football, and likely EVERYONE does it, but to me it is low class against a classy player. I'd be disappointed if any of our players were doing that to him, and I don't doubt him that they were. They should have been playing better, not dirtier.