False, and wow. If they observed human males yelling in the direction of their travel, their voices amplified by massive cheeks that females lacked, why would they not make the same conclusions?
It's not sexist to reject the absurd premise that behavior is unaltered by testosterone and estrogen. It is sexist to exclude people because of their gender or shame people because their behavior doesn't fit their gender role. It's nowhere near sexist to write observations about animal's mating behaviors.
Edit: also, your mention that comments like this are "notably missing from this thread" makes little sense when there's currently only one other root comment against the post.
in other words, feminists aren't robots that detect syntactic patterns and automatically complain about them. rather, there's actual reasoning and experience behind the objections.
If this is true, then it involves truths that I am quite sure you would not want to hear about.
Our closest living relative is the chimpanzee. The average adult male chimp has sex an average of once per hour. The only difference between a mating display and a threat display is the erection. Females object an average of 1% of the time in which case it becomes clear that the similarity between mating displays and threat displays goes further than a superficial visual similarity. (Do keep in mind that any healthy adult chimp - of either gender - is stronger than any human weightlifter.) Rape in chimpanzees is neither uncommon nor frowned upon.
This behavior starts young. In fact while males are not grown enough to be unable to subdue adult females on their own, their mothers will assist them in subduing low ranking females of their choice. Yes, this is exactly what it sounds like.
There may indeed be low level social similarities between chimps and humans. But if so, they are not similarities that we would feel comfortable admitting to.
If the topic interests you, for further reading I would suggest Shadows of Forgotten Ancestors by Carl Sagan and Anne Druyan. Among other things it is the source of the facts that I just quoted for you. And as a final thought, one of strongest cross-primate similarities is a connection between sex and dominance. The phrase, "Fuck you!" has echoes far and wide among our relatives.
If it makes you feel better, wild female orangutan mothers are capable of teaching their children over 180 food sources during a nurturing period lasting over 10 years. Impressive stuff.
Next you'll be objecting to nature documentaries that focus on male rams fighting while the females wait patiently to mate with the winner.