Ugh, this is bordering on trans 'representation' a'la DA:I.
In which a character exists literally just to have a discussion with another character about trans-sexuality. Then that character basically becomes a faceless NPC after that conversation.
Krem has more dialogue if you keep going back to him throughout the game. Even though he's not as developed as the companions or advisors he's still more than a faceless NPC He's not a character who "exists to be trans" He's a minor character who happens to be trans.