Parmandur
Book-Friend, he/him
I mean, who designed the Ravenloft Dark Gifts, based on the data in question? The same guy who did the Theros Supernatural Gifts, come to think of it, think his name rhymes with "Heremey Bawford"...There's also the question of how you count Ravenloft. I've excluded it, but we have a small Ravenloft campaign (3 PCs), and none of them have Feats, but all of them have Supernatural Gifts or whatever they're called, which the DM was willing to allow to be swapped for Feats, but no-one made that choice.
I wouldn't be surprised in the next take includes something like those as a core option, if people liked them in Theros, Strixhaven, and Ravenloft.