The measures she proposes would likely raise wages for everyone, especially women, because the employer’s chief advantage in salary negotiations is information asymmetry. They know what their budget is and want to go even further to have you tell them what you’ll accept (happily pocketing the difference if that was less than they would have paid). They also have a much better understanding of the market and comfort negotiating since they are doing this a lot more than you are.

I also think that helping women negotiate is more complicated than just teaching them techniques, because people will not necessarily react the same way to the same behavior from men as from women.