Yea, after seeing that video I think it would make a good anonymous submission to the state athletic commission, asking why participants and referees of a combat sport are not being regulated and certified at the state level, where is the doctor's evaluation of everyone that took even a single punch after the fight, why combatants who fail to follow referee instructions are not given long-term suspensions, etc... High school kids aren't supposed to be beating on each other without some serious precautions, hockey "tradition" be damned. The evidence about how damaging that sort of thing is to the brain is increasing rapidly so if the sport includes hand to hand combat, it should be regulated no differently than youth boxing.
After they're "adults" and not in the public school system, fights on and let them do whatever they can want IMHO.