Yeah, I liked that UA, though I do think those Feats are held back from being great multiclass alternatives due to not coming until 4th level and competing against ASIs.
I think Feats and ASIs being mutually exclusive made perfect sense in the context of 5e’s development, where opinions on Feats were extremely polarized and everyone was jazzed on the idea of modularity, but as the game has gone on and the priorities have shifted away from making peace between two warring factions and towards making the best version of the game we have now, that design decision keeps getting in the way of other potential designs that could improve the game.