Re: True, that's why it's *not* realistic
She looks like an Old West character. If the objection were about what's "competitive" they'd have critiqued the large rucksack and cookware, don't you think? Not a lot of sports bras in the Old West.
As to adding bouncing genitals to male characters and having male characters be naked and at full mast, you're being absurdly over the top in trying to criticize this.