I agree with Dr. Don.
For two seasons, every Vikings home game will begin with the phrase, "from TCF Bank Stadium on the University of Minnesota Campus, it's time for Vikings football." The announcers will spend part of the broadcast discussing the fact that they're playing at the U of M campus. There will be shots of the stadium and the campus. And, let's not forget, all games at TCF will be televised into the market of the visiting team - maybe even into a market where the Gophs might be recruiting. Plus, some of the games will be nationally televised, showing off the stadium to prospective recruits everywhere.
Considering the stadium has had little affect on recruiting so far doubt that any factor with regards to the Vikings playing there will change a thing.