The whole Sylvanas thing is just….. last nail in the coffin in this terrible story arc, like her just being controlled by the Jailer even though we see Sylvanas doing this on her own free will. They added this part last minute just to excuse not to kill her off. We destroy the jailer in 9.2 an antagonist they just introduced this expansion and he already defeated 2 patches later with no actual build up.
Meanwhile, FF 14 is closing up their expansion with build ups from the first expansion and exciting endings to villains that were built up through its expansions.
Blizzard’s writing team needs to take note.