Teams always need every save a goaltender gives them.
Holtby played his usual game, which is typically steady with some outstanding saves thrown in (when already up 2 goals in this case). He hasn't given up many bad goals the entire series and he's been victimized by fluke plays.
If not for those flukes his save % matches last night's results.
This wasn't a 1-0 stolen game. The Caps finally woke up and got some scoring, including on the power play, and the Pens didn't get any freak goals. As a result the better goaltender won, which could've been the case in most of the other games in the series with a bit more puck luck and a better PP.
Keep banging that drum, though.