Why the Tuck Rule didn't apply in the last play of the Packers-Cards game (I'm a Vikings fan)?

What should have been called was the hand in Rogers face mask! The replay clearly showed that the official was looking right at it and made no call. This game should not have ended on such a bad job by that official. I am going to print the shot of the play and send it to him .I will thank him for the fine work he had done up to that point but suggest to him if he can't see any better than that then it is time to hang it up!