I still don't like that V is still not a blank slate
On one hand - yes, I agree with that, the game provide very little opportunity for roleplaying, V is actually premade character and he's not able to influence the story much.
On the other hand, his personality makes me love him, care about him, consider him as a person. I've never had this feeling for fully craftable characters like protagonists of Skyrim, Dragon Age, Divinity Original Sin etc. They are nothing but a pixels, especially if the are silent. I think Divinity OS2 is game with a best roleplaying elements ever, but can't care less about protagonist, sometimes I even forgot that he was there at all.