Just ... just, stop. Please. There is absolutely no way that armchair analysis of gender stereotypes in an industry is going to be an insightful discussion, because it's a discussion that really shouldn't even be happening.
You know what I never hear when I go climbing? "Wow, those girls don't look like climbers." I'm helping on the periphery of a project right now to open a small co-op bouldering gym in my town, there's a "core" group of people making it happen, we got together to figure out the building layout and wall design, and half the people there were women. The person negotiating the lease for the commercial space is a woman. Not once have I overheard even a single mention of gender there.
You know what I never hear when I play Ultimate? "Wow, she runs fast for a girl." Again, nobody cares. People show up, they play, they hang out together, they go home.
One of the strongest people doing go (weiqi / badul) lessons online right now is a woman, Haylee. Not a single, "oh, she doesn't look like a go player". Instead, nothing but piles and piles of enthusiasm for every one of her videos. She's becoming a niche celebrity.
The outlier is the software industry. It's full of people that feel they have some kind of special insight into the anthropological origins of gender relations in a technical context, or some such bullshit. This entire thing should be a non-issue. I can't believe an ad for some company is getting this much attention just because one of the ads featured a young woman. It's stupid.
Damn I wish tech would just get over itself and start treating eachother like fellow people.