I think the reality of this team is somewhere in the middle. A lot did go right to win 52 games last year, but I don't think it was a fluke they were a good team. This year has just been a shit sandwich of injuries, goaltending, coaching, and some guys having bad years. As much as a lot went right last year, a lot went wrong this year.
I still think the core is fine. Most of them have been less than 100% at one point or another this season (I think Bratt is the only one whose been healthy all year). The depth needs to be improved and obviously coaching and goaltending need to be addressed. I'm not going to say it'll be easy or that they're guaranteed to be good next year, but I think they're closer than some around here think (although to be fair everybody's emotions are kind of raw right now so I get it).