We marry half a dozen people after knowing them for like 3 days, complaining about something in this game not having natural progression is supremely silly at this point. Barely any character in this game has anything close to feeling natural. Like I said, numerous things get hand waived away to get to sex.
A character leaning more into their dominance isn't even close to the same as what happened with Brienne. Brienne would've unironically been a great character if she actually had thoughts and feelings on changing genders while still retaining a good chunk of her old personality. The concept isn't flawed, the execution is.
That is not the end all be all for media to exist, but I get what you're saying. I also enjoy the character and Wsan obviously doesn't mind writing that kind of stuff for Kaly, so it's just silly to bring up.
You ever wonder how common that kind of stuff is in Savarra?, just some magical artifact rewriting your whole being into another person and everyone around you rolling with it?
We know it does happen in other instances, like, the horse stylist, Evergreen's daughters and even Hana for doing a solid for Keros. Even that guy from knot cave had as a backup plan a magical formula to turn guys into bimbo ladies which seems like a huge deviation from whatever project he had in mind, dude just knew the champion would be tempted with the power to fuck with even more people and worked extra hard, so that tells me that things like that, while maybe uncommon, might be a real situation the regular person would have to deal with, like the anal egg thing or being abused by plants, or tricked by "forest spirits" for some of that sweet soul juice they don't have
So while the execution is not great, Savarra is the kind of place where someone becoming another person because of magic is something you just have to accept, the kind of things no one points out despite being weird as fuck. Or maybe they just didn't care about any implication and are lazy, I might be reading too much into it