That's also because it's like the longest X.0 patch we've seen for a decade or so (just guessing a timespan here).
I have a pretty "healthy" relationship with Shadowlands for example.
I'm not playing atm, but I played my raids/mythic+ like I usually do. Actually more than I usually did.
But due to how M+ doesn't reward good gear anymore and no access to Mythic Raids. I was done with my progress at some point. Rather quick actually.
So after clearing HC and the +15 Achievement, I was done. Doesn't mean I didn't enjoy the time I had.
The dungeons are really fun actually.
The 9.1 raid looks amazing as well, the new mega-dungeon looks awesome too.
For all I care, the game should drop all the open-world shit (because it *is* done in a very shitty way and very lackluster overall and way to simple) and invest more into dungeons and raids.
They'd lose 50% of the playerbase then though, but I'd get a "better" game.
Another reason why they shouldn't listen to "players" (in this case me) and just look at their data (like they do now).
What do people do, do they do things without rewards? Do they invest time in something even though they don't gain anything from it?
Who does worldquests, when do people stop doing world quests etc. pp.