I don't think the conclusions are in error. It's reasonably well known among medical professionals that skin color affects pulse-ox readings. It is also true th

I don't think the conclusions are in error. It's reasonably well known among medical professionals that skin color affects pulse-ox readings. It is also true that sweaty hands or low iron levels will cause incorrect pulse-ox readings. I'm also not suggesting we ignore skin color as a relevant factor. I'm taking issue with the idea that everything that involves skin color is evidence of bias or other more malicious underlying causes.