Soccer (futbol) refereeing is far more sketchy than football. In addition to the normal complaints about incompetence that all sports fans have about referees, you have the added corruption. People bitch about the refereeing the in Super Bowl, and justifiably so, but no one seriously thinks the refs are trying to give the game to a particular team (at least no one rational). Moreover, you have fans so rabid (and devoid of sense) that they make Raider Fan look like your average girl scout.
I am a Bucs fan. I would like for them to get in and win the Superbowl. But they just seem to be missing that one thing. A great QB maybe. Their offense isn't great but it doesn't need to be with their defense.