The Lightbound expansion leak is actually insane because it's proposing that they would do a massive revamp of the leveling experience in 9.0 just to massively revamp it AGAIN in 10.0
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Okay you got me there. I forgot most of those because I was extremely checked out from the story of BFA. But there is a simple explanation for not getting as many of those in Shadowlands: The guy & his studio that does their fully rendered cinematics was busy making Arcane during Shadowlands production. So instead we got more in-game model cinematics from Terron Gregory this expansion.