I don't think the Steelers fans would be complaining about it at all if they felt secure about the victory. Whether they'll admit it or not, I think most of them wish they had won without so much help from the officials.
I know I would have been embarrassed with the victory if the Colts came back and won the game against Pittsburg. But in reality there is nothing to be ashamed about. It was Seatle's defense who let Pittsburgh get within an inch of the goal line. If a ref makes a call and gives them a touchdown, so what. Who allowed the other 99.97 yards?
I wish we'd won without so much help from Seattle. I think the official blew calls in both directions and I'm not worried about that. It definitely would have been nice to have come out like our previous playoff games and gotten a bonecrushing lead in the first half instead of needing Seattle to leave 16 points on the field in that half to leave us with a skinny lead, would have left me less stressed in the 2nd half. But there is no difference between a W because your offense did well and a W because the other offense did more poorly than yours.