WCHA official Todd Anderson blew this call, this was a shoulder to chest hit, there was no reason to throw Andrew MacWillam out of the game for that hit. It was a brutal call, just because the guy lays on the ice doesn't mean the ref needs to award a penalty for the hit. Before you jump down my throat, watch the video. Also, I am going to take the word of an NHL official (Kerry Frazier) over Todd Anderson who is a second rate official in the WCHA, at best.
I am not saying that a penalty isn't warranted for this hit, because you could've given MacWilliam a penalty for interference, but this is not a five minute major for contact to the head. When the NCHC starts it's play they need to not have use the WCHA officials for reffing games in the NCHC. This is a perfect reason why.