Most of the sales folks (just look at her resume..) I've worked with 'look' like a non-technical person. They absolutely look like they're trying to sell me something - whether it's through mannerisms, appearance, attitude or way of speaking. I'm going to ask them if they're technical if they're giving non-technical vibes as they try to sell me a complicated piece of software. Why wouldn't I? Why does it suddenly become sexist if she's a woman?
One of the most impressively technically proficient sysadmins I've ever worked with was an extremely attractive, high-energy woman. She's often not taken seriously because she's a woman. How does she prove her gender isn't a factor? She does good fucking work and never, EVER, brings her gender into it because it's not relevant. That's how gender equality gets solved, dammit.
I understand that she's basically being treated as a piece of meat at these places.. But the focus of her article is that she's not being treated seriously as a technical person at a tech conference, despite NOT being a technical person! Fluff and more fluff.