it's unclear to me how the category of "evolutionary restrictions" could apply to rationality techniques. Suggestions?

Not sure if this simple example is what you had in mind, but -- evolution wasn't capable of making us grow nice smooth erasable surfaces on our bodies, together with ink-secreting glands in our index fingers, so we couldn't evolve the excellent rationality technique of writing things down to remember them. So when writing was invented, the inventor was entitled to say "my invention passes the EOC because of the "evolutionary restrictions" clause".