Papers are routinely credited to their first author. Everyone understand the co-authors also took part. She also clearly credits the rest of the team in the posted BBC article.
There is actually nothing really in the BBC story about being a women other than in the context of her getting attention on twitter, but barely that. I think whoever changed the title might have been confused as well. It doesn't refer to woman as gender but woman as subject as in e.g. "the man walked his dog".
