"These results suggest that women's orgasms do function — at least in part — as a masculinity achievement for men

Or maybe men just aren't as self-centered and evil as you imagine they are, and legitimately enjoy making sure their women also enjoyed themselves. And that orgasm is a far more reliable metric than taking her at her word that "yeah I totes loved it babe!"

and truly view them for what they are: tiny little pleasure explosions that should be enjoyed — frequently — by female partners

Women aren't immune to the overstimulating effects of too much masturbation/sex. Having incredibly frequent orgasms diminish both the high you get from them and the ability for you to easily achieve them. We know this because it comes up constantly in all the "porn is bad for you" studies, but those only focus on men for political reasons.

Women might be under less pressure to fake orgasms if they could achieve them through a normal amount of effort that could happen during normal sex. But instead they'll run 500 miles of dick through themselves and buy ultra vibrators to make sure they can't feel anything on a reasonable level and they need a 20 minute post script after sex to achieve it.