While I totally agree with you on all counts - the Saints flat lost that game, there IS validity to questioning a few of the calls;
1) Saints punt in 1st quarter, Seahawks player blocked AWAY from punter, blocker releases him, Seahawks player then RUNS OVER PUNTER. Ref says "he was blocked into the punter"?

Huh??? Change of possession call - should have been 15 yards and a Saints 1st down.
2) Seahawks receiver secures catch, both feet on ground, Saints player punches ball out, ref blows whistle and says "incomplete". Again - HUH? Yes, they forced the punt right afterward, but that should have been Saints ball inside the Seahawks 20, not Saints ball on the other side of the 50.
3) Marshawn Lynch's TD - absolutely earned by Lynch. Piss-poor tackling by the Saints (6 missed tackles? REALLY?!?!

). However, a Seahawks player put two full hands dead center between the numbers on the back of a Saints defender chasing down the play and shoved him to the ground.That is a textbook case of an illegal block in the back, and there is no way it was "hidden" - it ain't just me either, the commentators made a point of circling the foul and calling it out. Should have been a 10 yard penalty from the spot of the foul, not a score (however, I don't discount the effort by Lynch, he did indeed earn it).
Again, I'm not saying these cost the game, the fact is the Saints showed up and stunk the joint up, but they did indeed affect the outcome.
Kudos again to the Seahawks, and good luck against the Bears.