It's almost like people outside the bluesky echo chamber dislike racewashing and can appreciate characters without changing them. OP almost figured it out.
I mean touhou is kind of a malleable series, characters get switched a ton, be it outfits, personalities and etc, so i dont think skin color is a big deal either. Especially considering that you have a post of Nareko with a different skin tone favorited, it's just not that big of an issue