It's pretty likely other conferences will end up doing something similar but I will say that the Big 10 has been handling covid the worst out of any conference. Between the delayed football season, the early baseball decision and the fact that the basketball schedule did not come out until a week before opening day. It's a really bad look for a major conference.
Personally, I don't think it's necessary but let's assume this is the safest direction to go. Bloomington is the fourth closest school to Nebraska. That's still a 700 mile one way trip by bus. That is tough. Rutgers and Maryland are in a similar boat. After Penn St and Ohio St, the next closest campus is IU. That's an 11 hour trip in a car, and an uglier bus ride.
The geography isn't great in the Big 10, but I suppose it isn't all that great for any power conference. Then again, none have announced no flights yet either.
I think there's a chance they may arrange it so that four teams meet at one campus and play each other there from Thurs-Sun.
Ex - Ohio St, PSU, Rutgers and Maryland all play each other at Penn State. Same weekend Indiana, Purude, Northwestern and UIUC play each other at Purdue.
As a fan that's a dream scenario.