I forgot the game was on, watched the highlights today. Poor Montembeault, lit up for 4 and maybe an argument could be made the first goal was his fault. The other 3 were just poor defensive play. Allowing Malkin to have the one-timer on the PP is bad, but Anderson was on the ice and doing nothing on the 3rd goal, wasn't taking away the pass, wasn't taking Malkin, was just in the middle of the ice for no reason.
Montembeault will never be a star goalie, but if his progression continues, he could make a decent starter, or a solid backup. His numbers just don't reflect his play this season.