To be fair. B's hat (we are talking about Lyric right?) is mostly just a pair of genitalia and some descriptors as opposed to a whole character.I know about the one author = one companion rule. Last time this was discussed I said that Wsan should've just pulled a trick out of B's hat and just let the player pick if they'll get Brint or Brienne when they first encounter them.
Anyways
Ehh. I mean how many people do we even TF across genders. Futafy the mouse sure. But, in regards to the full deal? There's Kelt and uhhh...I do agree tf'ing Brint to get Brienne is very coc-esque.
Kelt was kind of revenge at that, and he certainly had it coming.
The only person that shifts across genders I can think of is Arian and that's both optional and a result of them loving the MC for being 100% in their corner.
Wait I'm getting off track
Brint/Brienne aren't that far different enough that you're rewriting the mind and personality of one with the other. It's right on up there with dom/sub Arona in where the biggest change is the sexual dynamic of the relationship:
Free love vs MCsexual
Top/Dom vs (mostly) Lovey Dovey (or at least that's what the last batch of Arona scenes are like)
Lay with everybody vs Fuck my entire family/tribe
Maybe Wsan changes the dynamic or even what the armor is at the conclusion of Brienne's personal quest. Until that point, the characteristics that make up the character remains the same. (I like to fight and fuck)
Right now we know now from the Pyromancy Cloth set text that~
Brienne rather enjoys the new situation.
It's not a "making the best of a bad situation" type of deal even from a meta perspective.
For now.
Now if Brienne couldn't do the three things that Brint like (Fight, fornicate, and adventure) then that'd be more of a messed up decision.