Until the Winter Olympics are played in April-June you should really put away the "Canadian players prefer to win the Cup than an Olympic Gold" argument. They weren't playing for Lord Stanley's mug in '72. All those "Canada Cup" (back when NHL players *were not allowed* in the Olympics) were not about The Cup.
Bottom line is these guys have been winners all their lives and, whether this is just another tourney or not, they want to win it. If they had a choice between winning a Cup and winning Gold, sure, the choice would be clear; but I don't think that, during the game, any of them are thinking "Hmm, if I push *that much* harder I might get injured and risk my chance of getting the Stanley Cup".
Did the Canadian team get a little cocky/complacent/whatever? Damn straight. They are *not* used to a one-game-and-you're-done attitude and, let's face it, with the exception of the game against the US everyone (in the locker room, over here on this board, in the media, etc.) is fully expecting that these pare pretty close to "nothing" games. Wrong attitude, obviously, but I'm not ready to throw the entire team under the "diva" bus based on one game.
Yzerman underestimated what it takes to win an Olympic Gold. A player like Pronger, for example, could be very useful in a 7-game series officiated by NHL refs. Those bone-crushing and sometimes penalized hits have a lot more impact when you know you're playing the same team in a couple of days, and again, and again. In a one-game-and-out situation those hits could lose you the entire tournament.
I didn't really want to single Pronger out, but it was his play that led directly to the tying goal and the lost point. I don't know if the extra Swiss attacker had come on yet (I'm pretty sure he didn't make an impact on the play), but Pronger put himself way out of position to take a selfish retaliation penalty, and instead of a defenseman facing the shot it was Marleau skating into the crease with his eyes away from the shot. Tied game, all on Pronger.