Very well explained.Well Dorian, I don't pretend to hurt you first of all, but I think you are complicating the argument to keep the reason when the discussion is over. The distances are perfectly clear, there's nothing more to understand in regards for the Palaeo African position.
The features that you identify as "East Asian" in the Bushmen have really NOTHING to do with Asia. Palaeo African populations have usually a curious diversity in the facial traits, but it's just due to this: they are very Paleolithic and have retained most of the "original modern human seed" to make it easy to understand. In other words, they are more related to the "homos" who evolved in different forms all over the world.
I mean, this features (doesn't matter if "Asian looking" or something else) are absolutely native to Africa, hence, associated to Negroids. It's not the same, even not slightly close in no way, to what you find among any Mongoloid population in genetic terms. They are Pre-Asian.
My English vocabulary perhaps is not enough rich to explain it in a more proper way, but I think the idea it's clear. Palaeo Africans are true negroids with independence of their strange (or not) appearence. But if you prefer to avoid the term Negroid: Palaeo Afrians are more African genetically speaking than Neo Africans.