And yes, it helps that women's issues are du jour. A lot of credit goes to a lot of women for their diligence in this matter.
... as evidenced by not being on corporate boards?
The only relevant statistic is what percentage of board-eligible people are women vs their actual representation on boards.
Unless you believe corporate boards should reflect the composition of the population at large?
And in the end, there are hardly any negative consequences.
Progress is needed, of course. But these are pipeline issues that take decades to nudge in the right direction. Push the lever too far, too fast, and it is going to snap back in your face (See: Brexit, Trump, Poland, etc). There are consequences for disregarding the climate you operate in. Voters and companies can respond faster than you can; recognize the leverage points in your feedback loop and the appropriate amount of pressure to apply to each (and what each point can tolerate).
And in many countries, these policies have been done for over a decade with no obvious voter backlash.