The absence of certain types of bias does not preclude nor excuse the existence of other types.

>There is a lot of evidence pointing to a really diverse, generally progressive industry with, if anything, a higher over representation (compared to the population) of multiple minority groups, different gender identities and a much more inclusivity conscious mindset than probably any other industry.

That is not true. Retail, labor, non-tech administration are good examples to the contrary. The difference in pay and prestige is telling.