I don't think that's quite what he said. I think he was saying that the top tier of current trained talent isn't equally diverse as the underlying population b

I don't think that's quite what he said. I think he was saying that the top tier of current trained talent isn't equally diverse as the underlying population because of past biases in selection, and that making a blind selection from that pool likely perpetuates some of these biases. E.g. kids who grow up seeing symphonies that exclude people that look like them are less likely to pursue paths that lead toward them being in this pool. I'm not arguing in favor of affirmative action or a purposeful selection bias to fix this. It's a messy problem but it deserves thought and consideration.