I think he only got 20 hours of community service. The associated fine will have already been paid.
Let's stay realistic. You can find something on almost every singer/artist.
I find a Hitler salute and shouting "white power" (Phil Anselmo of Down and Pantera, among others) worse.
It's interesting to see what you think is a NO-GO (on GMM or in general with a metal band).
What does a band member have to do to be banned from the festival in your eyes?
Metal of course has many controversial aspects (Satanism, biting off the head of a bat (Ozzy), piercing real goat heads on poles (Gorgorgoth), burning Bibles (Marilyn Manson and others)