I'm aware of the Drow's previous history, you don't need to recite back to me the entire history of the Crown Wars and the Descent, lol. If you read other sourcebooks and novels though, the definitely distinguish between the dark elves and the green elves both culturally and physically. And the nature of the curse is more ambiguous with other authors as well. Some sources suggest that the drow were never transformed at all.
The thing about welcome moderate rollback of the awful ideas of 3e/4e (killing the Dark Seldarine off, for one) is that this occurred at the start of 5e, and the more recent drow changes came after that and supersede that. So when WoTC says udadrow come from Menzoberranzan, that udadrow are defined as the Lolth-worshipping drow of the underdark, that Menzoberranzan was founded by an isolated cult only a few thousand years ago and imply that most drow never followed and still don't follow Lolth, when the descriptions of the new non-lol-worshipping city states conspicuously ignore the existence of pre-established drow enclaves and populations of both lolth-worshipping and non-lolth-worshipping drow, I don't think it's a matter of WoTC's typical attitude of just not being interested in fleshing out areas of the Realms. They merely rewrote the entirety of drow culture without regard to prior canon-and their new canon views the drow as being divided into three flavors easily defined by their association with a specific city-state. There is no question that the Drow's role as villains has shrunk. And that's not even getting to the metaplot stuff with the revolution in Menzo, or how even before the recent retcons, there was precious little outside of the return of the Seldarine that was actually meaningfully repaired (all the cities destroyed in the War of the Spider Queen+4e were still gone)
As for Greenwood and the DMG, nothing he posts on his patron, his youtube, or anything he publishes on the DMG is strictly canon, as far as WoTC treats it. He's a superb world-builder, but I haven't seen much indication pretty much since 5e launched that he's still part of their creative team in any meaningful way/ Much less whatever Larian is cooking up.
