Even at his best, Reimer was always shaky fundamentally. I'm not going to join the "hate parade"- just because Reimer is down. (He's still at the very least, an average-ish NHL starter). The issue is your comparing him to Bernier, who's playing like a top 5 goalie.
Reimer has so many holes in his game that you can never be confident with him in net. His rebound control was extremely shaky last year- less so this year. He plays really deep in his net sometimes when he's flustered.
He gets easily rattled and doesn't fight enough for vision of the puck. This leaves him confused and standing like a statue instead of reacting to the play accordingly. Whenever another goaltender loses sight of the puck, they will follow the play and react to how the players are rotating. At least once a game, Reimer will lose track of the puck and look utterly clueless.
He leaves gaping holes and doesn't position himself properly a lot of the time. His glove-hand is not the best. He just has many holes to his game.
With Bernier, you have a superbly skilled goaltender who's only knock fundamentally is that he's undersized. I've been vouching for him for a long time now, even when he was a King I'd get flamed on this board for bringing him up (even when Reimer was playing well).
The eye-test means a lot for goaltenders. With that said, I don't blame Carlysle this time around for playing Reimer on the 2nd night of a back to back. As a coach, his hands were tied.
Don't play him- everyone gets a hissy fit especially because Reimer's being treated like hot trash apparently- even though I think it's just a case of him being superseded.
Play him- you risk writing off the game as a loss on an important west coast swing.
It was a lose-lose situation. The only issue I have continues to be Carlysle's defensive system. I don't know if he explicit told Phaneuf not to gamble to gain possession but I'm tired of being hemmed in our zone all game (could be Phaneuf being lazy as hell). You need to have players that fight for possession or else we're just inevitably going to make mistakes that lead to goals due to pure possession alone.