If universities can't increase minority enrollment without lowering the bar, what makes you think Google can? I would argue that university affirmative action is the inspiration for how Google and other tech companies are juicing their numbers.
If this isn't the case and Google does actually hire people based on their skill and not skin color or gender, then Google needs to emphasize that, or else the majority of people will look upon women and such as "diversity hires" and build a disdain for them, thus hurting the cause.