Larsson is in the top 3% of all NHL skaters in shot suppression, including when you weight the shots based on how dangerous they are, despite having literally the most defensively skewed usage in the NHL. That is inexplicable, unless you're wrong about Larsson being able to defend at an NHL level.  And if you're dubious of considering shot locations and shot rates, which I know you are, consider that this is after regression has been performed to isolate player impact independent of teammates