It isn't all bad luck, but a .650 onSV% is bonkers. If we're blaming that solely on Nurse, we're not talking about Nurse making the odd shot here and there harder, we're talking about Nurse making every shot 30% harder for his goalie. Does that really sound possible?
It's too bad the media doesn't actually want to do a good job. Willis could break down the 15 goals against on Nurse over that stretch and we could see how much of it is his fault, but instead he just posts flimsy GF% numbers to support a preconceived narrative.
Just off the top of my head recently with Nurse on the PK:
In Ottawa (PKGA 1) - he runs over to opposite side of the ice leaving the space he was supposed to be covering open. Easy goal.
In Ottawa (PKGA 2) - he takes nobody, causally lays his stick down on the ice, and watches an easy saucer pass go over him for another easy goal.
In Dallas - see Ottawa PKGA 2. Lays his stick on the ice as if he's doing something, puck goes through him to Seguin for a tap in.
The three above were especially egregious as the second screw up in Ottawa cost us the game and the screw up in Dallas opened the floodgates for them. In Dallas we went 2/2 on the kill when Darnell mercifully was off with a 10 min misconduct, then they made short work of us the second he was back.
This is the common theme - he flat out doesn't know where to be then covers nobody allowing the ultra high danger cross ice pass or being slow to read pressuring the shooter coming in off the wall. These aren't random point shots going in, these are plays going directly through him and into open nets.