eventhough i can somewhat "agree" to a certain extend where we can say he lost a game himself... we can't close our eyes on what the players are missing too.
You want to be fair well Schneider not being able to contain a shot that trickles behind him should be the same as Elias missing an open net or missing the net completely for example. But its always easier to blame the goalie of course.
The issue is when a forward makes a mistake, be it missing a wide open net or a defensive mistake, it doesn't always have the consequence of leading to a goal and as such is easier to forget.
A goalie makes a mistake or lets in a softie, it's in the net and everyone remembers that because there's only 4-5-6 goals in the average game. There could easily be 20 mistakes made by skaters during the game though. Hard to remember them all or even see them all.