I didn't see it. I was listening to the radio, and both Dolph and Ed agreed the reversal was a mistake that benefitted Iowa. Dolph used the phrase "home cooking."
Maybe it was, maybe it wasn't, but it brings up the basic problem with the way they've been interpreting catches the last 4-5 years. It's freaking ridiculous. It used to be that if a guy had possession when he was downed (or OB), it was a catch. Simple. Rational. The only thing the official had to determine was possession. Now, apparently if you don't still have the ball after you've showered and dressed, it isn't a catch. Total bullshit, and just another chance for officials to make judgment errors.
There were two TD catches in the ISU game that definitely were catches, and were correctly ruled to be catches. But in the next game, both of them might be ruled incomplete.