To me this was a part of the book that did not work, because if Taravangian offered a lesson on utilitarianism that lesson was "objections to utilitarianism 101". The arguments made werey very basic. I don't think they're terrible arguments. They are probably some of the key reason I'm more likely to say that I have utilitarian sympathies rather than being a full on Utilitarian, but anyone remotely aware of counterarguments to utilitarianism should already have considered them. There is IMO just no way Jasnah is so lacking in self-awareness that she doesn't know she's not a utilitarian machine and that her actions are inhibited by lack of knowledge and tainted by her emotional attachments, but it seem the story want to tell me she is?
I suppose it’s possible that her reaction is meant to be more to losing the debate that to the devastating force of the objection, but it did seem to me that she hadn’t considered this before.