They're fine. The 5x5 play is there and elite. 57% xGF% over the 3 game stretch.
Special teams has hit a speed bump, particularly the PP. These things tend to happen in a long season. I'm pretty confident they'll figure it out given the track record of elite PP play under this coaching staff and top end personel. A bad two week stretch of PP shouldn't overide 5+ years of a top 5 PP with largely the same personel on the top unit. There's been some hiccups defensively, but that's going to happen given the injuries.
I don't really care about seeding and wins at this point. There's nothing to be gained by moving up or down. If they stay in a WC, it's Florida or Carolina, both 110 point teams. Carolina is no bargain but I think I'd prefer to jump to the Metro. Hell, NYR may catch Carolina and while Shesterkin is scary they are by far the weakest team of the 8 in the East. If the Bruins jump Tampa, then they get Toronto another 110+ point team. They aren't catching Toronto and grabbing home ice, so there's no point in pushing.
If I'm them, I'm in full load management mode the rest of the way. Pick 1 or 2 games to roll the playoff lineup out for a tuneup, otherwise rotate sitting the core players like Bergy, Marchand and McAvoy to get them healthy and as rested as can be. Don't play Lindholm and Pastrnak until they are 100%, or as close to it as they'll get.