but the net result is still that rapes are a decent reproductive strategy (if the rapist can get away with it).

They touch on the statistics further down -- it's believed to be due to the fact that, in the case of consensual sex, the woman is more likely to have control over when in their fertility cycle the act occurs.

This seems really unlikely in the context of marriages before the Enlightenment, or in the context of wars and raids (where women were a resource like any other).

Different cultures have had very different approaches to marriage throughout history; they still often do. Anyway, I'm talking about the claim that rape is an evolutionary adaptation from the ancestral environment, couched as a reproductive strategy -- Neolithic Eurasia is a bit too recent to be germane to my argument.