They did not explicitly say it, it was definitely implied, since their entire comment was to claim that is was misogyny and sexism that were the motivations for commenters questioning these board members qualifications. I invite folks to actually look into qualifications of all of the board members, unless it's changed they're on the OpenAI website.
No, they didn't imply it, and they didn't claim it was the primary motivation. They just said it was a contributor. You are perceiving a stronger claim than they made.