Even if fantasy porn allows for more body variables which can be enjoyed regardless of one's attraction towards typical masculine/femenine shapes, there will be people who'll think "Ewww penis, gross and homosexual! Not for my waifu!!" when confronted with female herms, especially if they can't detach genitalia combinations from real life.The reason that writers usually couch this particular conversation in terms of what Etheryn does or does not want to do is because the most common argument given by people who want her to have a pussy and no penis is "because she [supposedly] wants to", and the second-most is "because it would help her". Neither of those things holds much water if you point out that this isn't what she wants: that people are misinterpreting "I want to (continue to) have she/her pronouns and feel like a woman" to mean "I don't want to have a penis and I do want to have a pussy".
Personally, I don't think this crowd will vanish anytime soon. Of course, one can still try to change their minds, and I wish the best concerning such endeavour.