That doesn't answer my question, Xil. What would the sex scene add to the development of her character?
You wish for me to repeat myself? Very well, to repost again something from a PM:
Not only that, but given Josephine's general personality, along with general past conventions of Bioware games, I never saw any reason to assume we'd started having sex without it coming up. Because, for Josephine, I know that it'd be something important to her; like Leliana and Merrill, she's the romantic sort. How it would happen would be of tremendous emotional importance and is something that I enjoyed seeing in all prior romances, and I feel badly hurt about being unable to do so now, because I know it would have mattered. I don't and will never be able to know her in the way that I knew anyone else I've ever romanced, and I find that horrible.
Yes it would, because the reasons to have or not to have sex are now limited to what they provide you. That is less immersive than what it is now.
Hardly. If it's player-triggered, you can have any reason you want for not wanting sex.
Like I said in the post, the very implication that a character wants sex would already annoy some.
Then ask for an explicitly asexual romance instead of oozing the implication into someone who isn't.
Also, if they did that then you would have to have optional sex for every romance to balance things out, and I honestly doubt Bioware would put in the effort and do that.
Only for those characters who'd be willing to be in an asexual relationship.