Yes, this bothers me as well. If 40% of all graduates in a particular field (like engineering) are women, and a company wants to have 50% female employees, that would mean they are overrepresented, since the employment pool isn't the general population. Same thing for all kinds of groups, like disability, race, ethnicity, etc. Everyone should feel comfortable and welcome, but we shouldn't aim for certain gender or racial ratios as the measurement to optimize.