That is my point. Strong community desire to go back to old world will be adressed in Midnight, cause Khaz Algar was already far into production.
Of course not, old lore of Warcraft can be very stupid. But I take "epic, but stupid" from Metzen or Afras-- I mean you-know-who over bland 9.2 or Alextrasza from Danuser era.
Every expac has it's gems though, and I hope Saga will have more stuff like Draenor Shadowmoon, Suramar, Zandalar main story, Jaina plot, Revendreth, Blue Dragonflight.
I think Saga is Metzen idea and TWW/Xalatath were planned as part of something else. It's clear when you watch reveal.