Other issues which are sure to arise is that the a.i. will have trouble with people who aren't smiling, and that the data set probably contains people who look better than average, and almost certainly excludes people who suffer from injuries or deformities in appropriate proportions.
Perhaps an interesting project is simply the compilation of a vast dataset of “world proportional pictures of people”. — It would be an interesting undertaking to realize such a dataset.
My personal take is you won't see any tangible movement on this until black women (or whatever group you choose) comprise a tangible proportion of revenue generating users. Corporations operate for money and nothing else.
Black women or other groups not viewed as the mainstream target for an AI solution aren't going to form a tangible proportion of revenue generating users if the software doesn't function properly for them. And a lot of the use cases for AI analysis don't involve the unrepresented-in-corpus minority group being the consumer anyway, they involve it being used to screen them by a third party who's been sold the tool on the false premise that it's free from human bias.