Just to be ignorant, I never knew that it was an either/or option or that high shots had been make legal.
There is a big difference between players pushing and shoving that escalates where emotion takes over, and someone standing in front of a player for a moment with time to think and then from nothing makes a strike to the head to a player not expecting it.
I would agree that even in the majority of cases when pushing and shoving escalates it relieves tension and the right thing to do is tell the players to calm down and get on with the game. Deliberately looking for and starting a fight however is never justifiable, it is outright thuggery not heat of the moment emotion. And choosing not to doing anything about it is cowardice.
If people want to watch boxing or MMA then go and watch boxing or MMA.
A +1 for every line.