I agree that blocking the feature is the smartest thing to do if people are going to get offended. It's idiotic to call it "racist", it's a shitty classifier, and it's incredibly irresponsible (and probably racist) as well as dismissive of actual racism to pretend that's racist. At the same time, I'm surprised they can't get this classifier to work. It doesn't seem like a very challenging problem (I'd consider myself…
https://www.mdpi.com/2227-7390/9/2/195
> "Studies have shown that due to the distribution of ethnicity/race in training datasets, biometric algorithms suffer from “cross race effect”—their performance is better on subjects closer to the “country of origin” of the algorithm."
However, these classifiers are also problematic as racial identification is a bit thorny politically. It's comparable to gender identification classifiers in the context of trans politics (as, regardless of personal identification, there are some classifier-accessible differences between the vast majority of female and male faces, although I suppose there's an androgenous middle ground).
To go out on a limb a little, imagine an 'Aryan vs. Jewish' classifier - who wants to be associated with that? Lots of downsides for any commercial outfit, certainly, and few upsides.