while this feels rushed, its the team that does filler expansions (WoD/BFA). so its not a huge expansion like MoP/legion or what SL was supposed to be before they abandoned ship and started dragonflight.
i would say its way rushed, but they dropped all progress on an entire tier in SL to start dragonflight sooner, its apparent.
also, what they showed of DF, its looks much further along than most of their mid tier expansion work