Both games you mention though were against tough defenses as well as some unusual circumstances. The Seattle game, as you mentioned, Rodgers was playing on one leg and still had them poised to win.....won't recant the last 5 minutes of the game, where AR was able to bring them back to tie the game. The Arizona game, the Packers had 4 healthy WR's to start the game and lost Cobb right away. Once Cobb left, AR was left with one WR that wasn't even on the team until Jordy got hurt (Jones) and 2 WR's that were at the bottom of the depth chart (Abby and Janis). So to say that Rodgers had a bad game is IMO placing the blame in the wrong place. Without AR, we would have been blown out of that game is probably more accurate.
I think we all get frustrated when the Packers lose, mainly because of just how good AR really is. When he is behind center, we all know the Packers can win just about any game. However, against quality opponents, AR can't be expected to do it all alone and has proven he can't.