The main benefit of diversity is that it causes people to fight each other instead of fighting those in power. Upper management at Google has a real problem of the lowly workers organizing protests and pressuring management to change, forcing more diversity would fix this. Then they could finally become Microsoft where nobody raises an eyebrow when they help China spy on their citizens, take on military contracts or hire republican politicians.

By the way, you might not have noticed but the measures described in this article are intended to achieve just that, as it mostly silences the loud left within Google when they try to push back.