I am also convinced that sexism is a societal problem, and not the hand-wringing of a few key dudes.
There are plenty of things in Computer Science / engineering / etc that are trying to be nice/funny, but contribute to a strong culture of sexism.
You see two or three examples of comments in the article, and feel comfortable dismissing her point entirely as a result. But of course a written article has only room for two or three examples.
She wouldn't have written it if there weren't an absolute nonstop stream of this sort of crap over the course of years. A point she made abundantly clear, and an experience that would be oppressive to anyone.
(Not to mention the numerous things that can't possibly be read as "nice or funny", like having all your contributions ignored in favor of equivalent contributions from men. That makes me wonder if you actually read most of the article, or just skimmed and cherry picked a couple things that left you feeling justified in dismissing her.)
When you learn to listen to people who are struggling instead of dismissing them, your life will be better. I promise.
Being considerate of others isn't just saying "pshht i didn't mean anything by it!" it's actually thinking about how other people might react in the circumstances they've been put in.
You can call sexism a lens, but it might also help to understand the experiences others have lived (from their POV, not yours) to see why it's a lens that others are brought to employing.
On the positive, things are changing. I see this issue get talked about a lot on here now, and there's a greater dialogue in the culture about it. It will take some time ...
And, again, if you make someone else feel bad is it the right thing to do to go "oh, well i didn't mean to make you feel bad, so you shouldn't feel that way."
This is how I feel about most tech gatherings now, even online discussions (I'm actually a bit nervous about this comment). Any interaction I have with a woman in tech, or any discussion about women in tech that I might participate in, has the potential for career-threatening blowback. So far I've been following the War Games strategy: "The only way to win, is not to play." But that doesn't feel great either, because now I'm consciously avoiding people who otherwise might have been great to have a conversation with.
The worst part is, I didn't have that problem until the whole women in tech thing was dragged into the light. I'm not saying that shouldn't have happened: it's obvious by now that there are problems that need solving. There have been consequences, however, of which I'm not sure the more vocal members of this movement are cognizant.
I had female friends with whom i took CS classes who all had stories about guys who would do super weird things like start talking badly about them to others or refusing to cooperate with them on class projects after it being made clear that there was no romantic interest.
Nit picking individual comments or trying to negate how people feel about the circumstances they find themselves in isn't really addressing their concerns is it?