Then why do you watch? What's the point if it is all predetermined?
Plus, I don't know how much you know about people, but no way that many people involved all keep their mouths shut. Refs, league officials, etc. All it would take is one of any of hundreds or thousands of people to say something.
Also, if it happens multiple times per week, what calls this week influenced the games? Did Buffalo win because of the refs? The agenda?