I rather agree with you fully, but you are elaborating 'because of his evo psych theory' differently than I intended. The OP's point appears to be that no one [or at least expert] was aware of the connection, until evo psych created a framework that generated a prediction along those lines, that then allowed people to begin focusing on that connection. That's the sense I used.

Your political story, along the lines of gravestone to gravestone, I find reasonable and likely.