I know that everyone knows of the ref who was barred from the NO/Carolina game because he was a Saints fan, but you do have to wonder if the rest of the replacements don't have similar allegiances, just better concealed.
With that said, how come nobody is talking about the Saints' loss to the Chiefs in terms of two VERY important blown calls. The first was a touchdown that was called back from PT23 (Pierre Thomas). The original ruling on the field was a touchdown, and the video evidence led the commentators the believe that Pierre Thomas did indeed catch the ball, yet the official overturned it, leading to no points for the Saints on that drive.
Later in the game, Drew Brees was "sacked" in the end zone, but upon further review, it was clear that he never hit the ground, made his way out of the end zone, and downed the ball a yard or two out. Even after review, they called it a safety. That made it two HUGE game changing calls that cost the Saints an overtime game.
My point with that is, just because those calls didn't come at the end of the game, they still determined the game. Similarly, the refs might have blown a call at the end of the game with GB/Seattle, but realistically, Seattle wouldn't have even had to try a hail mary with time expiring, if the refs had just called it right originally.