Just because you think it's problematic does not make it so.
Athletes 1) have always been largely separate from the rest of the student body (I see that repeatedly as a Scholarship Donor), 2) the athletes are taking on-line courses like all students, 3) the athletes are actually safer without students on campus and 4) athletes passionately want to play their sport.
Just so you know - the CU AD is beyond pissed the PAC 12 has shut them down - Polis and Boulder were very likely going to allow them to play with the testing protocols CU has in-place.
So you are back to thinking Covid-19 is dangerous?
And you did nothing to refute my point at all. Parents of regular students are going to rightfully have issues with campuses being closed.