User blog comment:Zolnir/Flaw in Tournament Setup/@comment-1292715-20160317174508/@comment-13488655-20160317234433

Well think about it. In many sports, especially rough ones, refs are required even if there's camera's, tech, etc. to make sure that the players don't go too far and see first hand if there's anything shady going on. o.o That goes even for most sports that don't have weapons.

The tournament featured teenagers, with guns, blades and nearly any possible weapon you could imagine that is designed specifically to kill monsters and using it on each other. That imho would be a good enough reason to put in a skilled ref no matter what the world is.