I think it's bullshit. I'm more inclined to think the quality of healthcare minorities get, or anyone for that matter, is economic. Now there may be cases of a black person not trusting a white Doctor as I know of white people objecting to Indian (from India) Doctors. But I think that's a pretty small percentage.
I don't have any hard evidence, only anecdotal, but it sounds like special commission is in the same boat.