Earlier quoted context omitted.
Google dislikes getting bad PR. Modern western tech society will criticize (mostly correctly) a lack of diversity in basically any aspect of a company or technology. This often is expressed in shorthand as there being too many white cis men. Don't forget google's fancy doors didn't work as well for black people at once point. Lots of bad PR.
Why is a "lack of diversity" a problem? Do different races have different attributes which complement each other on a team?
Actually, no. In reality diversity is hindering progress since humans are not far from apes and really like inclusivity and tribalism. We sure do like to pretend it does tho.