Two divisions might as well be 2 different conferences. It’s semantics really.
The truth is people don’t want to get rid of divisions because it would mean Iowa is in 5th-7th place most years. That’s it, pure and simple. Iowa fans want to feel like our team is more elite than it is. 2015 doesn’t even come close to happening in B1G without divisions, and that’s kinda wonky in my opinion. Yes it was fun, but it was a charmin ultra soft schedule that year and we got exposed in the Rose Bowl as far as how good we really were outside our cushy division. Same thing this past year in Indy. It’s been proven since 2012 that winning the west division is a token achievement because the East is always going to win. They have the 2-3 best teams in the conference, so they should.
Regarding fairness, what’s fair is making sure schedules are divided up evenly over a set number of years.