I'm not very surprised by this. Playing, coaching or even watching a competitive team sport brings out emotions, for better or worse. I consider myself a very mild-mannered human being and have never been in a fight in my adult life, yet i found myself offering that idiot next to me in the stands a few punches on the nose if he didn't shut up and yelled abuse at my best friend on the pitch a few times
What never ceases to amaze me, though, is that the US folks care more about what words they use, than the intent behind them. Cursing about a youth player who won't play because of a concussion apparently is very ok as long as you don't use any f-words and have a good prayer afterwards.
Jason Brown, the HC of season 3, has a very big advantage over Buddy Stephens imo - He has the biggest gutter mouth i've ever witnessed, but he is authentic, he doesn't pretend to be someone he isn't. As opposed to Stephens who, imo, is a huge hypocrite. The players have figured this out in a few minutes i believe, as it is impossible to hide.
Problematic is that only the players with a strong personality can deal with something like that, the weaker ones will be left on the road. But then maybe i'm being naive as this is clearly a system designed to weed out material unsuitable for the pro league, it isn't about developing character or aiding troubled teenagers.