I suspect that, although this is a popular argument with feminists, it doesn't always fit happily with other feminist arguments. The idea is that these women are just like the others and it's only male prejudice and self-doubt that's holding the other women back. And, actually, it does turn out that this confidence is seriously misplaced. Far from undermining an evolutionary analysis, these women are probably exceptions that prove the Darwinian rule.
Statistical generalisations are exactly what many feminist issues are all about.
I think that the statistical distribution of male-female differences is a really interesting issue, with important implications for policy. I'm really keen to see research on this. It seems to me to be something that Darwinism, feminism and policy-makers most definitely need to deal with. Meanwhile, 'within and between' gets us nowhere.