I think a lot of the skepticism here is drawn from the experience people have with companies that are culturally very different from companies like Google. Those companies are intensely management-driven, heavily siloed, and have very little internal inter-departmental communication that doesn't go through a layer of management. Difficult questions never get asked because management doesn't want to make waves or risk their fiefdoms. Documentation is hidden by access controls. Employees keep their heads down and do what they're told.

Bay Area tech companies such as Google are culturally very different from this. The silos largely don't exist, and management is not used as a way to funnel and control communication. Internal candid dialogs of surprising vigor can be found about any controversial issue. People are not afraid to ask pointed questions to high-ranking people. Policies and documentation are widely accessible.

It is, quite frankly, unthinkable that something this wrong and this blatant, involving thousands of people, would be allowed to happen for years in a culture such as this. And in a company like Google, "asking around" is indeed productive and would result in open and honest responses.