Apologies for contributing to going off the rails here, but on the other hand, that 26-year-old 3-year vet playing in his 32nd NFL game went to a jog at the 10, with a DB closing fast, and flipped the ball away before he'd crossed the goal line, just one week after an uproar over a WR (Mitchell) doing the exact same thing. Beyond bone-headed, it showed no respect for the game.
Who doesn't think Parcells or Jimmy Johnson or [insert similar name] would have cut the guy on the spot? It wouldn't have been just a sideline chewout, he would have been pointed to the locker room to clear out.
Edit: Just to be clear, the slap at the end was nasty, petty and way too much. If that's why Gannon got fined, all for it. But confronting the player, got no problem with that. Maybe I'm just too old and cranky.