I agree with everything you said, but I do think it marks a milestone toward equality, and a milestone worth recognising.
Ask the previous generation of women what it would have meant to them to have had a female leader of their country when they were growing up? I bet they'll tell you it would have made a difference to know that it was possible for them too - and not just in theory - it will have a psychological impact on young women (and men); which in turn will help make our future work-places less "hyper-masculine" and better environments for all.
No, it's not a magic pill, but every little bit helps.
What's the difference between a computer salesman and a used car salesman? A used car salesman knows when he's lying.