So this is something my opinion has been evolving on.
I hesitate to rate a guy with a career high of 24 points over a guy who had 28 ASSISTS last season.
I love Larsson and was always the first one to defend him, but the guy had a very limited skill set, which he was very good at, but I can only rate defensemen who can't produce offense so highly. Which is fine, not everyone can score a ton of points. ME Vlasic is an outstanding defensemen who doesn't produce a lot of points. But at some point, we just have to acknowledge that Larsson is what he is at this point. The offense isn't going to suddenly blossom out of nowhere in his SEVENTH season. Whether it's DeBoer's fault, or Lou's, or Oates or Hynes or his own, that's a different discussion we can have.
I know one of the Devils fan memes for years has been "I prefer my defensemen to play defense", and sure you don't want 6 John Moores back there, but retrieval and transition are the most important part of a defenseman's job. Offense starts in the defensive zone. A big reason our offense is so bad is because we suck at transition. If you can't move the puck up ice or properly distribute it in the offensive zone then you're never going to be anything more than a niche player.
Severson certainly has his issues and I take strong objection to people who worship him as the second coming. His **** ups are usually huge and obvious ones, and he often makes his own life more difficult by taking really bad defensive positions. I'd also like to see his decision making happen a little quicker. But his skill set is exactly what we need right now.
At some point you just have to transition your cute spreadsheet numbers and nice optics into a tangible measurable asset to the team. Severson has started doing that whereas Larsson's contributions are largely anecdotal. He 'looks good' and is 'strong on the puck' and 'made a nice play'. Those are things that make Don Cherry excited, but Severson right now is actually producing points and sparking our meager offense. That needs to be factored in.
I think Larsson leaving an already weak defense hurt us a lot, and I think Larsson is a very good defenseman among the top in the league at performing his specific role. But I also think Severson right now is bringing more to the table right now than Larsson ever did.