I don’t feel it is that complex for the most part, but then I’ve been playing the game for like half my life at this point, 18 years of getting used to the language of the game. I dunno if I could get into it that much before getting overwhelmed.
Because of my long standing relationship with the game I am comfortable pushing my limits with it. I hit 1800 in RSS on day one for the mog, and even after never touching M+ in any previous expac except maybe one +2 in Legion, I’ve been able to hit 2500 this season as a tank and it was very easy and achievable. And I am able to do a lot of +14~ on healers, a role I haven’t really played since TBC. New players will likely not feel motivated to press on things like that and try new things just for the novelty of it if they’re barely able to get ahold of the ropes.