To a certain extent, sure. Would you be surprised that there was already water standing in the grass areas yesterday afternoon at the corner of S 4th and University? That is probably the worst draining area but I think people under estimate how poorly the entire area around the stadium drains.
I just took alook at the web soil survey. The soils in G7 are a Zook and Coland which are poorly drained. The public/student lot is classified as a Spillville which is somewhat poorly drained. So I agree with you on the drainage issues.
I do think there is quite a bit of storage available though due to the lack of moisture until this week. I also took a peek at the Squaw Creek depth gauge and it is still low, so the water table is at a point that there should be plenty of storage available.
I was pretty confident yesterday that there shouldn't be an issue. I still think it will be fine unless Ames gets multiple heavy hits in the next 36 hours.
A cool note that the imagery that the web soil survey used was during a game.