On the subject of uniques, wording, and leader abilities

Very glad you put a TL;DR cuz that was really long. I'm not gonna argue with what you said at the bottom, but the fact is that the "If X is present grant copy of unique" should really end with the death of the granter. It would just make more sense and make uniques more consistent overall. Either that or they could just add to the description that it won't end on death. Just make it clear and consistent.