Quote Originally Posted by NegativeS View Post
"Yes, we can't have one world designer work on this minor thing because it'll take away from the work being done by the instance/quest/mechanics designers. Why?... It just would, okay?"

Don't drink the SE kool-aid, they can absolutely do both things at the same time, they just choose not to because a shareholder's portfolio might have one less 9 than he was expecting at the end of a quarter.
They can rarely bring themselves to do more than the bare minimum for content behind two paywalls. The modicum of effort needed to make the special instance drained their effort budget for the next year of events.