To me, BfA is almost exactly the same as Legion.
It's the same focus on world quests. One daily quest with bigger reward etc.
It's the same focus on M+. The same key system, and endless scaling of dungeons in a "modern" GOGOGO AoE fashion.
It's the same Raiding system. 4 difficulties. LFR, Normal, Heroic and Mythic.
It's the same questing system.
It's the same AP grind.
It's the same Titanforging system.
It's actually a bit BETTER system than the "no gear should matter in PvP", "100% random garbage ilvl PvP gear" PvP system we had in Legion.
To me, it seems like the only reason people liked Legion was because of the transmogs on your cool weapons. And people seem salty that BfA don't have Class sets (another transmog argument). Is it really this easy to make you enjoy an expansion? Cool transmogs = good expansion?