During the game you said (on twitter) that he played poorly for the past month, including during the Olympics. I have to disagree with your assessment.
Two of our top four D-men (Bieksa and Mitchell) have been out since January, and we've had Rome and Lukowich in as replacements. Lukowich has dropped off from last season with the Sharks, and Rome is only marginally better.
To top it off, we've been on a 14 game road trip with a weakened defense. Home teams come out flying usually, and road teams usually have to weather the storm in the first period. While I agree that he's let in a couple goals he'd like to have back, there are even more blown coverages that our over-played depth D-men have given up. Alberts is a stop-gap that will hold the fort until we get Mitchell back, but he's had a couple of blown coverages already in the few games he's been here.
As for Luongo's Olympic performance, what about it was there not to like? Does one bad goal against Slovakia = a bad tournament? I think most people would disagree with that. Let's see, he shut out Norway, which no one else managed to do. (VIKINGSTAD!)
He let in two against Germany after Canada had put the game out of reach and had checked out mentally and physically. The next night, he let in 3 goals against Russia, the second best offensive team (depth-wise) in the tournament. He let in 2 against Slovakia, which had enough weapons to turn that game on a dime. He still weathered the storm at the end, absolutely robbing Demitra. Remember that one?
Gold medal game, in OT, Scott Niedermayer gives the puck away to Pavelski. Pavelski has a clear break-away from the TV-right faceoff dot. Luongo stands up out of his butterfly stance and bats the puck away with his elbow, a shot on which most goalies in this league would have let in top corner. The puck gets cleared down the ice onto Miller. He steers it into the corner. Crosby and Iginla dig it out in the corner boards. The puck squirts loose from Iginla to Crosby, and he puts it away for the 'Golden Goal'. In case you missed it Mozy, that Gold-medal preserving save came approx 25 seconds before Crosby scores the winner. If Luongo doesn't make that save, we'd be dealing with 4 years of American non-hockey fans gloating in the media right now.
I think you should be focusing more on the defensive coverage during games instead of defaulting to throwing Luongo under the bus.