Black people have been struggling to make space in gamer/nerd spaces for decades. It's not even acceptance from white people, just a space where they can exist without being attacked or appropriated. Nintendo going out of their way to include both darker skin tones and textured hair is basically throwing black people a bone, but the response from non-black gamers has been either complete indifference or outright hostility at the notion that black people are being acknowledged and respected enough to have their features included in-game. This manifested in the whole scramble that's being alluded to in OP.

Obviously, listen to black people on this and remember that there's a whole lot of bad faith going around, especially when race is the discussion. It's not "just about AC hair xDDD", it's about the wider discussion of black people in gaming spaces, the general cultural power imbalances between them and non-black gamers, and whether they should exist in them.