There were questionable calls (and no calls) through out the game going both ways. That being said, as a Seahawks fan, I feel for the Packers, they were thoroughly hosed on that last play and that unfairly handed the Seahawks the game. The way the Seahawks played in the second half, they certainly didn't deserve it.
Until the Steelers get jobbed out of a Super Bowl against the Seahawks when they are the superior team on the day, nothing will ever make up for that.