Sucky choices all-around...
1. Bring 35,000 students back and spread COVID, all but guaranteeing no fans at the first or subsequent games, and causing the potential elimination of sports, jobs, and performing arts. But, the university gets vital tuition dollars and keeps ISU's academic standards stable.
2. Keep classes 100% remote...no students on campus, fans are likely at the first and subsequent games, no sports cut and performing arts continues, but the academic side of the house suffers from significant tuition loss and local business loss, professors and staff laid off, further erosion in ISU's academic standings.
Honestly, killing a couple of sports (hopefully temporary), some jobs cut, and possible performing arts reductions, is the right choice if they can't get fans in a stadium.
By the way, while the big schools are being looked at as big COVID spreaders, don't forget the vast majority of elementary, middle, and high schools are carrying on like it is normal business out there...COVID was going to spike regardless.