I'm really happy she felt comfortable doing this. What an incredibly brave and strong person—I can't imagine what she must be feeling. What I really want to see is the other 20 men on her team tell their bosses to cut that shit out. We cannot rely on the abused to stand up for themselves; for every one who does there are thousands who cannot. It is on every one of us to report abhorrent behaviour, even if we think so…
We already know that managers at Uber use reviews to punish those on their team that are at all critical of them (especially for ethic issues). The "20 men on her team", even if they did want to say something, could reasonably expect to have their careers (and potentially a material amount of Uber stock vesting) impacted by standing up.
That's not to say that these men couldn't have or shouldn't have stood up, but they would've had to take some amount of risk to do so. In a company with better controls, these men would've felt comfortable criticizing this manager (and confident that they weren't endangering their careers or financial well-being by doing so).