I understood your argument, and my response was to put it in perspective. Law didn't fix this problem by coming up with rigid rules about men and women being alone in the same room together.
ISTM we're considering two different problems here. The first, and more important from society's POV, is that there aren't enough women working in the industry. The second, and for some much more personally important, is to avoid being sued for harassment. The people who worry about the latter may be grossly overestimating the danger, but their reactions to that overestimate could still make the first problem worse. Reactions like "same-sex environments", for instance.
So by "putting in context", you're simply saying that other industries had other ways of dealing with things.
Ok. So what?
I would expect different people and different industries to respond differently. Maybe you don't. How various people in various industries react to external stimulus is beyond my knowledge. That's why I find it interesting.