Whilst it's unusual for a woman to do something like this I don't think its unheard of so I'm not sure why people are obsessed with the idea that she is a male.
It's about trust, ten years ago if I had seen a headline stating "a woman ..." I would have trusted that the article was talking about a woman.
I do understand the frustration of people asking why it is still being questioned, but put the blame where it lies, on the people who decided that woman sometimes means man.