I did see this and agree PJ should not have made this comment specifically, but he was making the comment in jest and as a way to tell Nerd fans to suck it up and move on. He's made many comments after the game in how UGA flat out beat them in almost every aspect of the game.
Besides, I think PJ even knows that Tech fans don't throw punches. They may stage raids in WOW, but don't know how to throw punches.