I'm sorry? It's not same.
Based on the communication with Astarion and Lae, you can see that they WANT an intimate relationship. That's why making them asexual or giving them such a function (?) is weird.
Yes, this option can be given to the player and conditionally it is, even now in the romantic scene of Astarion you can say "This is not what I want" (or something similar?), but it OFFENDS HIM because HE WANTS it. That's what it's about. He has desires and he shows it.
He does not show that he would not like men or women... If he showed, as you say "for example", that he doesn't like women, and then slept with a female character, it would look bad, that's what it's about.
And right now he shows you that he really WANTS sex, and then you want him to react with HAPPINESS to the refusal to get it or get an alternative that he did not say a word about... you know what i mean?
It's hard for me to talk about the characters completely we only have the first act. But right now astarion and lae look very horny, and when you ask give an option for horny characters where they approves of a non-intimate relationship, it looks strange, as if you are changing some part of their personality.
+1
