1If it where as easy as just writing the mod and making an item or two without coding I would of made quite a few mods by now, but sadly it is not.1) If you have such a strong opinion on an NPCs character, why not write a mod yourself? Odds are you won't find any mod created by another person that satisfies you, so why not see how many people agree with you? It's certainly more productive than complaining about how other people see the character. If your option is so rigid, why do you think you'll change the minds of other people?
2) If you're choosing not to download a mod because it might have the possibility of an NPC behaving in a manner you don't think is accurate, you're only denying yourself the enjoyment you'd get our of playing the mod. Quitch has said that Imoen won't be the agressor romantically, so you'd have to actually try to force the NPC to act in the way you don't like. That's like punching yourself in the face and complaining about the pain.
2If I pick not to download a mod most likely I would not enjoy it so this point its moot.(I think thats the word I am going for.)