Just as in genetics, diversity is good. Thats not the issue people are having with the article.

The article says that CS should change its culture in order to attract more and become popular, conforming with mainstream values.

If you told Stephen Hawking im sorry you cant have that picture of Spock on your wall, instead you have to have this poster of some pop group because thats what society deems acceptable. Do you think that would be well received?

The point is that if you have an interest in a field then you are tolerant of such idiosyncrasies in order to learn.