Sounds like a crock to me, but then I'm not a geneticist or whoever worries about things like that. I reckon anyone can be trained to do anything and it may be merely a cultural barrier that needs to be overcome, rather than a physical one.
We're supposed to have gone beyond all that crap. If you can't get in on merit, changing the standards to facilitate the selection of unsuitable candidates is not going to do the long term future of the company any good at all.