Yes, most Super Bowls are blowouts, and superficially that might appear to support a conclusion that their integrity is unquestionable, and this one was no more subject to doubt than any other.
But this NFL season is different enough from its predecessors, that I had predicted a result like what happened, not like the usual blowout.
This has been an exceptionally bad year for the NFL. Too many injuries. The Concussions. Stupid protests. No-shows. Deflategate. Franchises wanting to move, and other cities not wanting them. The NFL was said to have become a terrible product, and unwatchable. Oversaturated. Fans tired of Thursday night football. And worst of all, ratings way down, with ad revenues to follow.
It was obviously important to have a dramatic, exciting, Super Bowl to salvage this terrible season. So I predicted a close, exciting game, with the trailing team getting key breaks and the leading team getting good plays called back, etc.
NFL owners do not see the rigging of games as illegal or unethical. They see football more as a business, or entertainment, than as sport. By arranging a barnburner, they think they're benefiting everybody.
The fact that Super Bowls are usually blowouts and this one was not, does not at all suggest that its integrity is unquestionable.
The only surprising thing was that the overtime was so short. But that is only an apparent anomaly. The Super Bowl never had an overtime before, so it had had no occasion to change its tiebreak system. But when they figure out how much that short one-drive OT cost them, the NFL will change the rule to require an overtime period, not sudden death. That should increase profits by a nine-figure amount. And look for ties in regulation to become common.