Interview responses are monitored for tone and vocabulary everywhere. Insufficient enthusiasm is often a valid reason not to hire someone. It is appropriate to ask questions about diversity and feminism during an interview—those are core values of the company, the first bullet point on their Careers page, even. https://github.com/about/careers

Are you saying github is asking questions about diversity and feminism in their hiring process or that an eq test has these questions ?

Because political opinions have nothing to do with eq testing (see http://myframeworks.org/testmyeq/).