Personally, I found that there wasn't a sufficiently clear distinction between when an argument was part of the "standard model", when it was made in the book, and when it was your opinion.

Also, this sentence:

There are four major research areas supporting the standard narrative that Sex at Dawn identifies in Chapter 3 as underpinned by Flintstoned reasoning, which collectively lead to the conclusion that "Darwin says your mother's a whore." (Ryan and Jethá, 50)

... is very confusing, and trying to be witty doesn't help. Just look at the grammar:

A supports B that C identifies as underpinned by D, which leads to the conclusion that "E says F" (G).

I mean, what the fuck? Is the conclusion that "Darwin says your mother's a whore." or "your mother's a whore."?

I understood the sentence after three or four rereadings, but I certainly wouldn't put it in the hall of fame of "clear and concise writing".