I don't believe for a second that the doctor believes that intelligence has no inherited component whatsoever. She is dealing with a problem in the real world using what tools she has at her disposal.
Edit: Responding jamesaguilar's and true_religion's point about the title. Yes, that's true. I had just read the article and the title wasn't in the forefront of my mind. But when you get a title like that, you simply can't know whether it is meant as a bald statement or rather as something to pique the interest (or as link bait, if you aren't feeling charitable). So, if you elect to click the link, read the article to find out!