If the model is trained like facial recognition software (which it certainly will be) then it will perform comparably. That is, it will consistently misdiagnose for people of color the same way facial recognition flags people of color incorrectly.
That's an assumption. It's also an assumption that the model would misdiagnose open sores and lesions on one type of skin vs another. Facial recognition software, the ability of the model to tell different people apart, is a hell of a lot different than identifying the mere presence of open sores and oil.
Did you even read the article?
only for patients with mild-to-moderate acne.
the AI analyzes their skin, identifies the acne problem, rates the skin's oiliness, and then generates a numerical acne severity score that ranges between clear skin and severe acne
The AI then combines that score with the provided medical information to recommend medication from a list of eight approved treatments.
Again I say, this is a limited use-case, in which a very easy diagnosis can be attained through imaging equipment. We have a limited number of doctors, they can be utilized more effectively instead of dealing with a bunch of pimple-faced teens.