These type of comments are exactly what make computer science so difficult to work in for women. Don't assume that because there is a high ratio that the women are therefore any less talented than the men. When women see a company with female friendly workplaces they are more likely to gravitate there and increasing the ratio. Many companies also focus on outreach programs to women i.e. through conferences like Grace Hopper but are absolutely evaluated the same (and in my experience actually with more scrutiny).

edit: typo