A cheer is a cheer, doesn't matter how it originated. How is it acceptable for Dreher to do this cheer after a win, while others cant? I am sure they (Dreher) have beaten many teams while those teams were having bad seasons and they felt like Dreher was "rubbing it in their face". Your argument has no merit!!!! Have you ever heard of the sayings "your reap what you sow" or "what comes around goes around" or "everything is on a wheel"
Dreher is young and has had several injuries, they will be ok and will be back doing the "Devils work" before you know it.... and I am sure that they will let the opponents know why the did it!!!