The no call on the fumble was bigger than a lot of people let on. It wasn't the fact that OSU had the rest of the game to make it up, it wasn't the fact that the refs missed the call. That play would have been such a HUGE momentum swing it could have possibly completely altered the game. If you have ever played organized football at a high level (I count playoff caliber high school teams and up) you realize how big of a deal momentum is in a big game.
Its just like when people bitch about OSU fans complaining about Ted Ginn not being in the national championship game as being a huge factor to UF winning... Well guess what it was... Ginn left the field, UF players even admitted they were able to change their gameplan, go single coverage and pin their ears back and go after the QB.
Football is a team sport that is driven on emotion. If one small thing goes out of balance, it can completely alter the whole outcome of the game, whether people want to admit it or not.