I don't really think engineering was all that huge a deal to him
I think that you have that right at least. If the kid wants to go to iowa, more power to him, but don't say how impressed you are with iowa's engineering program. Three of the best engineering schools in the country...and iowa. If the kid was serious about engineering, iowa would be the last choice. Then again, with football taking up most of his time, maybe an easier program is better for him. In reality, he probably won't be able to handle engineering anyway and will end up a business major.
Would have been nice to sign him, but he probably would have been on the bench at ISU until his RSJR year at least anyway. Hopefully for him he doesn't fall into the blue chip OL bust trap at UI (Larson, Felder, Doering). They actually seem to do better with walk-ons and former TEs.