[jere]

>Attractive women are, on average, less intelligent and capable than their less attractive counterparts. Seems a bit prejudicial to me.

That's not the argument being made. The author is only claiming that hiring by a metric other than competence will lead to worse hires than hiring by competence alone.

It would be like if you hired the people with the shortest first names. Unless short names happened to be correlated with job performance, you're essentially picking names out of a hat. Pointing this out doesn't mean you think people with short names are less intelligent.