Iowa officials did not say that, it was an assumption made by JBo (who's not exactly neutral on the issue).
The same article also says the only Big Ten school to release their NIL data so far has been OSU, who already has a marked advantage over the rest of the conference in that aspect.
Are the B1G schools' hands tied because of guidance coming down from Kevin Warren, Gene Smith, etc?
Granted, someone mentioned that Nebby signed a football transfer for a lot of NIL money, so who knows what the hell is going on. At the same time, Nebby doesn't seem to like to listen to the B1G.