drag the game down. There's offensive holding all the time, but much of it doesn't get called, because a lot of the time, it's immaterial to the result of the play.
In the case last night, that hold had a material impact on the outcome of the game. If it were not called, we would be going nuts about a receiver being held at a crucial moment in the game. It was a game-changing call either way; because of that, you make the call according to the rule.
Just my .02