I mean let's not act as if Metzen was much different. It's just that in his coked-up fever dreams he saw the setting as some 90's power metal trip where continuity was for losers and swooned over Thrall instead of the current writers thinking about how many ham-fisted moral lessons they can cram in the story while swooning over Sylvanas or Anduin and thinking continuity is for losers.
Metzen presided over TBC and Cata, and WoD was also very much something he greenlit. We still have one and a half expansion of shit lore to go before we equal his track record.