I'm not ready to call Palmer a bad playoff QB based on 3 games, one of which he won. He does need to "that year" where he gets on a run though.
You take away Aaron Rodgers 4-0 run to the SB and he's a below .500 QB in the playoffs.
Take away Wilson's 3-0 run and he's a .500 QB completing less than 60% of his passes and a QB rating below 90.
Palmer has to get that one run and all will be forgotten. Those guys have done it but it also took them a couple tries. This will be the year with a home field NFC Championship game.
I agree he was shaky early against GB but he ended up with a good, winning overall game. He's not the only QB to be graced by a fortuitous bounce.