The Schneider fans around here are having their own meltdowns. They are clinging to the injury excuse, but I think it was clear that he just wasn't ready to handle playoff pressure. If he was injured, he shouldn't be starting, and if he did start injured, someone needs to be held accountable.
Also, no, he's normally a lot stronger down low than that. His weakness are short side, blocker side especially upstairs, and puck handling. I'd say down low is the strongest part of his game. It was just odd to watch him struggle 5 hole and laterally like that.