I agree completely, except…
I’m levelling this alt through the Alliance zones, and I have to say the levelling experience is pretty good in BfA. The Drustvar quests, particularly the Falconhurst quest hub, is some of the finest Blizz has ever done.
Of course, Stormsong Valley isn’t great, and once you complete all three zones the endgame is pretty much hot garbage. (In fairness, I haven’t tried BODA yet, and reports seem to indicate it’s a pretty fun raid.)
But I think it’s worth remembering that BfA isn’t 100% awful. There are actually some highlights. It’s just that those highlights come and go, and what endures is the painful stuff.