I don't see how this particular study is promoting inequality. It's not claiming men or women are better, just different.I have issues with this genre of studies, which could be called inequality promoting studies as all they do is lift up one of the sexes while putting the other down.
It's a sad day when people use the name of science as a tool to express sexism.
I don't think "promoting inequality" is necessarily a bad thing. Promoting truth is what is important. If it turns out women's brains are actually better than men's at some things, we shouldn't squash that knowledge in the interest of equality.