I went back and reread this again. What you are referring to, but have gotten slightly wrong, proves my point. Primates, especially our close cousins, bonobos and chimps, vocalize during sex, often to help the male "finish" but to also "advertise" to the next guy that she is about to become available as a sexual partner. This is what allows for greater chance that her offspring will survive. It has nothing to do with a dominant man - it has to do with being multi-maters.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3130230/

"Females of many primate species produce loud and distinct vocalizations during mating events. These signals, known as ‘copulation calls’ [1], are especially widespread among Old World species in which the females are promiscuous, live in multi-male multi-female groups and advertise their receptivity with sexual swellings."

Primatologist, Meredith Small notes that seeking novelty is the single most observable trait among all the sexual behaviors, preferences, and drivers of female primates. Female primates are actually the complete opposite of how we’ve been taught to imagine them — as reluctant breeders or seekers of “intimacy” with a single “best” mate or only seeking to mate with the alpha.