That was probably my favorite gaffe of his many. It just showed how clueless he was (and is) to the real world, not the faux royalty one he has to imagine himself in.
To me it showed him to be a complete phony. If you like college football, then you know about Michigan vs. Ohio State. If you don't like college football, well that's perfectly fine too. But JFK2 was pretending to be something that he simply was not, and got caught in a big way. I don't care who you are, that's funny!