If you're going to bash Pac-12 refs, I'm out. Anyway, it seems that they haven't been calling these in the endzone. Shaq did it against Stanford and he gave a salute after scoring a TD against Cal. I thought he would get penalized after each one, but they didn't throw the flag.
I think the fact that Washington did his celebration in the middle of the field had a lot to do with drawing the flag. I think it's stupid. Let the damn kids have some damn fun. He wasn't taunting an opposing player or the opponents' sideline.