Earlier quoted context omitted.
Google seems to care more about manipulating the masses than they do performance/profit. The fact they admit to passing over objectively better candidates to hit quotas proves this. I'd say what you mention is probably a side effect of that.
"admit to passing over objectively better candidates" I'd love to see your citation on that claim.
Disclaimer: I have no opinion on this topic. I am merely speculating the potential source of info.