Between missed TD passes, missed field goals, and missed 3rd down conversions that would have put Seattle in FG range the Seahawks easily left 16 points on the field in the first half on drives that had not one single flag thrown against them. If you want to know why Seattle lost just look at those drives.
I'll give you that....but no team does everything right, such as making every 50+ yard FG. However, the Seahawks easily did do enough to win if their legitimate gains & scores were allowed to stand.
OTOH, the Stealers' level of play that day wasn't nearly good enough to win on their own without help. Which was why things degenerated into the sorry state of gimmie football we all witnessed. But maybe the Stealers could have won without the refs help. We will never know now.
Yeah, The Bus went out on top, albeit driving on a stolen license.