I would hope there would be some other way of doing it. There should be ways of making friends with people other thank killing their enemies. It, of course, has to be balanced as it doesn't make much sense to be ally with blackscale if you are a member of the SC, but I would like to see a way for COI aligned folks to be non-kos to both, which does make sense lore wise. More of a stretch, but I think you should be able to be at least non-kos with your opposing faction as well (something like an ambassador). All with the appropriate amount of work, of course.