They just showed tOSU's remaining games this season. If Iowa had THAT schedule, I'm not sure they would win more than 1 or 2 games the rest of the way (Purdue & Nebby).
Unless Nebraska or Wisconsin build back up to top 15 teams it's still going to be very hard for them to have a tough Big Ten schedule.
It could happen, but those 6 non-rivalry spots would have to draw at least four among tOSU, Mich, USC, Oregon, PSU and probably some other team being better than usual.
I'm kind of surprised the good Big Ten teams are fine with the situation. It must be like how Sauron didn't even consider a hobbit could walk up to mount doom and throw the ring in the lava.