While I understand what you're trying to say and i respect your opinion, scissoring has always been a way of sex for wlw. It wasn't created for men, it was taken away by men to be treated as a fetish for men (like lesbian porn, whose main audience is supposed to be wlw).
Honestly I'm extremely glad seeing scissoring shown in a manhwa because I never see it. I only ever see foreplay like fingering being shown as sex between wlw when there's so much more to it.

Coming from someone in the lgbt community that likes women, the portrayal of these women is spectacular! They’re not objectified, they’re characters before they’re women, their “play” is healthy, and we even got some stereotypes in there made by lgbt folk for lgbt folk! I could’ve been a coincidence with that last one, but the weird earrings, being clueless, being in theater, and the slight flirting with friends, all screams gay!