The only reason I would give Nebraska a chance is because of how well they've recruited under Frost, especially 2019 and this year's class. I think by next year, they'll be competing for the division(2021). I still went with Wisconsin, because outside of OSU, they've been the best B1G program this century. Going against something that consistent, doesn't make much sense to me.
I agree with your premise about kids not caring about what happened in 70s, 80s and 90s, but with that said they are still recruiting better with Frost than any other B1GW program. Also, I don't think it can be understated how truly awful the Riley hire was.
Once he finally gets the team to get 8 wins, those players out of state should begin to stick and not be too quick to hit the portal. It's tough to have those kids sit while they live so far away when you are losing.