I don't disagree. If I am the Bruins I am going to try and respond. Make the ref call them both.Then push back. Go right up to the same line they do. If it gets called it gets called. And next time the officials look for it more. The Bruins did this for 7 straight against Vancouver way back when, so it’s silly to cry foul now
If I were the Bruins, I'd also be mentioning it to the Ref supervisor who meets with both sides post game. Keefe cried about Domi getting called for slashing and claimed Marchand does it and gets away with it.