Yeah, I agree that there's more to look at than only the xGF%.
We had a delta of almost +4% GF% against xGF% (despite Hellebuyck having a down year in 18/19) in the 3 seasons before this, and a delta of about +6.5% this year, mostly driven by Hellebuyck (10 fewer goals against than expected). So yeah, at some point people who pretend to be all about the stats need to stop just calling the Jets a garbage team getting lucky and start questioning what's going on there.
Don't get me wrong, I'd rather have a possession dominant team performing in line where they should as we are extremely susceptible to a goaltending of shooting slump, but it's disingenuous (or ignorant) to just say we're on 4 years running of getting lucky.
This is exactly it. 40 games isn't much of a sample sure, but this has been going on for multiple seasons now. We remain middle the of the pack or better in the standings and yet the advanced stats tell us we should be at the very bottom. Elite scoring coupled with elite goaltending has allowed us to buck the trend. The Jets don't seem to care if they get outshot, especially if they can keep most shots to where Hellebuyck can see them. The vast majority of times Helle gets scored on it seems like it's a deflection or he's screened. If he sees the puck, he's likely to stop it. On the flip side the Jets aren't the type of team that is going to throw anything and everything at the net. They pick their shots and seem to pick them pretty well. 20 shots is all they need to win a game it seems.