The author didn't write it, nor did he attempt to support it. I think the author made the mistake of quoting too heavily such that it's easy to mistake another author's words for his.
I didn't think I'd need to quote his actual words, but that's where we are:
> Whether it’s explicit gender bias or not, it’s important to recognize that people are afraid to speak up about how they feel for fear of getting dog-piled on by a bunch of “real” developers. That needs to change.
> I have about 3 blog post drafts covering similar ground and apparently we see very much eye-to-eye on this