True, but people were pretty happy with DF's content. You also got to remember that narrative lead was never a position he wanted. The role was pretty abruptly dumped on him, per Afrasiabi.
Absolutely not. The WoW development pipeline is way longer than you seem to believe. Metzen announced his leadership of the Warcraft Brand in September 2022, and it was reported he was back working at blizzard 10 months before that. That means Metzen had about twice as much leeway, at least a year longer on TWW's development than Danuser had on Shadowlands.