I don't think that's overly true at all....in terms of having a very traditional view of how to defend. I think it takes Karlsson a ton of effort and focus to defend. He's clearly capable of being very good at it and at times in his career he's demonstrated that. However, i don't think he's overly interested in being really good at it, defending is just something that has to happen until his side can corral the puck and he can switch gears to offensive mode. As his interest in defending fluctuates he becomes good or bad at it, depending on his interest level. IMO its actually quite remarkable that he can do that, but he clearly can.