Exactly. Bottom line, the Steelers ended up with more points, and that's the only stat that matters - not yards, QB rating or anything else. I think the offensive pass interference call that cancelled out the Seattle TD was erroneous, but replays seemed to vindicate the refs on the other questionable ones. The game wasn't decided on a penalty or two - the Steelers outplayed the Hawks when it mattered.
The luckiest person has to be Seattle's kicker. Lost in the fog of the officiating is the fact that he missed two crucial FGs, that could have made the difference. Yet nobody is harping on this.