Should you a rowdy group out for destructive behavior? Sure, absolutely.
Should you then ban the school for life? Nope, that is an amazing bad decision on so many levels. Just stupid. And as an aside, how do you ban a school “for life”? A school is not a living thing. I assume they mean forever.
The Guggenheim has denied the reports that they banned the school. Could by CYA by the Guggenheim people, or the original reports could have been overblown.