Earlier quoted context omitted.
> Understanding at least some of what they felt they were up against should make clear the most obvious obstacles that need to be cleared. That doesn't follow. The obstacles the women who succeeded in CS perceive aren't necessarily the same obstacles that drive women who don't succeed in or who don't pursue CS. Sometimes these will overlap, but not necessarily. Clearly the obstacles faced by women who succeeded were…
It won't provide a complete picture, only the picture of the common obstacles that were insufficient to stop them. Read the article and count how many things that you can say 'as a man, I never had to face this and would have considered it inappropriate had it happened to me'. To me those are candidates for obvious obstacles to try to clear. They are the sorts of things that numerous women probably were deterred by.
I'm skeptical of this sort of claim. The sexism barriers in medicine and law were much higher, yet women persevered and achieved gender parity despite them. I don't think women are so easily deterred as you seem to imply.
That said, of course it's still worthwhile to eliminate overt sexism of the sorts described in the article, but I don't think for a second it will change the gender ratios by very much. The sort of sexism described is unfortunately everywhere.