"As for facial recognition - the Guardian periodically castigates Google because AI facial recognition isn't good at identifying people with dark skin."
Neither is my camera. Is yours? Identifying a black face is hard because of the lack of consistent tonal contrast within the face, compared with pale complexions. My camera won't focus on black faces, probably because black faces with their low inherent contrast essentially lack the 3-point triangle simple face recognition systems use to identify faces in the first place.
And Japanese camera manufacturers, who sell the bulk of their cameras to Japanese, obviously optimise their face recognition systems for Japanese faces, which are easy (perhaps the easiest) to recognise from three points.