The university is not asking people to protest. It's not a university sanctioned event. while I agree with the notion that people should be wearing masks and be socially distant (not to mention peaceful), if COVID spreads due to those protests, the university is not liable.
Please look at the list from the Universtiy of guidelines, and then look at the article in which 2 students were suspended.
Not to digress, but I find that argument that this is beyond health/safety a bit amusing.
My argument on health & safety was in an earlier post about CTE.