I can't speak for the person you replied to, but my interpretation was "diversity of minds" (or "viewpoints", etc), not gender or race. Perhaps you'd agree tha

I can't speak for the person you replied to, but my interpretation was "diversity of minds" (or "viewpoints", etc), not gender or race. Perhaps you'd agree that the diversity of opinions and points of view on a team is crucial, even if they're all X race Y gender.