Because the VBL is afraid. Suhl also seems to have money problems. If Suhl is fined, the next club might go bankrupt.
But I would have liked an official statement from the VBL. A clear message that such behavior is not acceptable. And if that happens again, you'll play your home games without spectators.
After the action, I also wrote that I could imagine a fine. But currently I have only spoken of a statement in which one distances oneself from such actions and presents them as unacceptable. So exactly what you said now. But unfortunately the VBL keeps quiet about this. But I think that's in the nature of the VBL. They overlook a lot of things until the house of cards collapses.