No one was going for any team in particular. They were cheering for their bets to win. I lost all interest in the idea of me ever gambling after that.
There are certains sports I love to watch because I love the game. Gambling would ruin that for me. No thanks.
Honestly, I would expect the opposite. I wouldn't care who wins between the Cowboys and the Giants, but if I put a $10 bet down on the Giants, all of the sudden and find myself rooting for them. You should tell your buds to bet on a team and forget all the prop bets. ;)