There's a difference between her goals, and the goals of a women-only tech event. Her goal is to change society by introducing new ideas about how society work

There's a difference between her goals, and the goals of a women-only tech event. Her goal is to change society by introducing new ideas about how society works. In order to be most effective in doing this, she wants to talk to as many people as possible. In particular, if she does not go to all-inclusive events, she'll eliminate the very people who are in the best position to do something about it. Women-only tech events have the goal of encouraging individual women to engage in technology. Their hypothesis is that there is something about society (either at-large, or localized to technology) itself that discourages women from engaging. So, instead of changing society as a whole, they create a new space which operates in a way that they think is more conducive to engaging women in technology. I think that both approaches are valid and commendable. I think it's a mistake to confuse the two, or to say that having one means the other is not useful.