I think it's more that they try to unite something that cannot be united.
Take this whole covenant thing, it's supposed to "restore some RPG elements".
Of course, reintroducing those "old RPG elements" is out of the question because the modern audience is pretty aversed to its downsides, so they attempt bring that old philosophy back but also "balance away" any of its downsides.
To me, it's more of a symptom of the team realizing that they pretty much axe'd a lot of RPG elements out of WoW over the years, which has hurt the game, but the reintroduction clashes extremely poorly with the gameplay focused approach the has for over a decade by now.
Also, ego is also a problem, which is frankly a huge issue with Blizzard and certainly not limited to those "ex elitist developers".
Those people overestimate their ability time and time again, which is ironic, for all this talk about "all they care about spreadsheets", i'd expect pretty solid balance in that aspect.
Lastly, it also needs to be said that the vast majority of outdoor content in WoW is just plain bad, unless you're a fan of grinding in style of Classic / TBC, there is hardly any decent outdoor content in WoW.
I am asking you, where has WoW not been "Raid or die" to you?
Nothing, but that's way it has been since Wotlk.
I can't believe people are still salty about Mar'gok.