It’s feed people into BFA since its inception up until the pre-patch hit.
#ShadowlandsDoesntExist
There are a few cleanups with how it flows into Dragonflight now, but Dragonflight was never really optimized for new players in the same way that Exile’s Reach was. It is nice to have the continuity with some of the NPCs, and the Follower Dungeons help too.