Slate: Against Single-Sex Schooling

I agree with this post from Slate.com. The authors recently published an article in Science about how schooling girls separately from boys isn't a good idea. They bring up 3 points:

1. Research on single-sex schooling hasn't found evidence to support that it is better than the usual mode of education. Effects of economic background, selective admission, and extra resources and mentoring account for the success of many single-sex schools.
2. Folklore holds that boys and girls learn differently, but neuroscience doesn't support the notion.
3. Schooling separately reinforces gender-stereotypes.

What's your take on the issue?