I don't think

a couple of little harmless digs at rival QBs will hurt Clowney's chances at the Heisman at all. He was trying to be funny and everyone thought it was funny (outside of Clem and UGA). No one is really even bringing it up now besides Clem and UGA fans. I also don't see where Clowney has talked any trash since then. It's really not a big deal, no bigger or worse than Dabo's rant. It's not worse than Sammy's comment either ( I didn't see an issue with Sammy's either, it was harmless).

Clowney and Manziel are considered as the best players in college football. One thing about all this crap going on with Johnny is that he is being compared to Clowney a lot. The comparison is pretty much making Clowney look like a choir boy. That's the image the media is painting of Clowney. I don't think anyone looks at him in a bad light because of a couple of little playful jabs at opposing rival teams. I really don't. 

What will hurt Clowney's chances is these new safety rules. With the new rules in effect "The Hit" would have likely got Clowney ejected this year. Shit is gonna hit the fan when the first major player gets ejected and a team loses a ball game because of it. You should never give a ref the ability to make a game changing decision like that during the game. After the game is over you can review it and make the decision on whether the player should be suspended from the next game but a live game decision like that is ludicrous.