Hm. I do find that to be in somewhat poor taste, but only because they've drawn her gender-hurdle as being almost the same size as the one for the girl born in Sahel. I'm willing to bet that if you asked the Gates, they would both say that the girl born in Sahel faces a far more considerable gender hurdle than Melinda did.
I'd say they just ran a regression on the variables without any interactions between gender and other variables. It seems more likely than them trying to make an argument about equal struggles.
