It makes sense that if some muzzies tried to start trouble when there were a whole bunch of masked young men already psyched up, that they would get more than they expected.
You are joking right? The video shows a group of guys chasing people with sticks, and then a two of the same guys kicking someone in the head while he's on the ground.
From that you know that the victim must have been a Muslim who must have been trying to start trouble?
Local authorities would tolerate a tradition where masked native youth go around lightly swatting people in fun. They would NOT tolerate a tradition of masked native teens committing serious assault on random people for fun.
This was not a "clowning around" make-believe swatting. The Krampus' were seriously pissed off at the people they hit and chased. There was something going on.