It was a beer shower, there was no danger to life or physical integrity. A shower break would have sufficed, if the referee lacks mental strength, a postponement of the match may also be justified. But game cancellation and scoring?
In this case, the aggressor’s team was behind anyway, so it’s not as dramatic to stop play and assess it. But what would have happened if the aggressor’s club had led? Wouldn’t it be very drastic to score the match against you because of a single spectator? This would open the door to match fixing.
The league should not put such serious decisions in the hands of the individual referee, but establish a transparent catalog of penalties. A continuation of the game, adjourned or not, should take place. Because that’s how it tastes from Zwickau’s point of view.
I’m sure this decision wouldn’t have been made if it was a Bundesliga game. Lawsuits rain down to the Supreme Court. And rightly so.