Sure, he may act superior but the WoW devs are no authorities in game design as they have been failing at it for many expansions now.
Also, sorry to say but they are incompetent. The way they design the game doesn't take into account what they want players to do.
For example, RP text in the spires dungeon. Knowing full well that players would have to run the dungeons hundreads of times, they gave no thought to it.
Oribos flythroughs... knowing full well that players will have to go throut it thousands of times between zones, they made the unecessary step mandatory.
Covenant choices, which they wanted to be a thematic choice, they tied to player power despite being warned it wouldn't work. They got proven wrong.
Theres many more of these examples... maw, torghast, etc.
So, no, if i'm honest i think i would prefer bellular designing the game atm, cause the current team clearly are not designing an mmorpg. They launch some crap they try to band-aid later before saying they learned lessons and then finding a way to forget what sort of game they are making in a closed room completely ignoring player feedback.
The complete opposite of current FFXIV. Actually it reminds me of the vanilla XIV release.