Viconia Friendship does more than that. Her talks refer to events, happenings, and emotions from the romance, but they were actually written to be something else than a copy. IEP mod should do something more than that - also because that would strip her original romance from significance (and at the same time, make the friendship less interesting). Why should anyone befriend her if they saw all these talks during the romance?
Viconia in both romance and friendship is the same person, with the same past and similar fears, but there are some things you share with friends, and some you share with a lover. So yep, there are some motives, she may refer same events, mention similar concerns, or show what kind of b**** she can be, but there are quite significant changes. Kaeloree actually rewrote many lines, even if the themes are based on the original content.
It would be cool to see Jaheira Friendship among present IEP mods, but as I said, it would need to be more than "copying the entire Romance tree, leaving out any explicitly romantic content", sorry... However, if you decide that you want to write new stuff, then you should definitely give it a try. And writing these talks doesn't mean you can't use the romance talks as inspiration, use some motives, or even some lines, and then write about these things but also add something new and give PC a chance to be a good friend. Friendship isn't exactly about being something less than a romance, but something different from a romance. Hence, the new stuff Kaeloree added, talks that were rewritten and some stuff was reshaped and rephrased.
Furthermore, it's worth saying that NPC IEP mods are not dead, and there are people with whom I am in touch... who are considering writing something. If you too feel you would like to give writing a try, let me know.