1.) Nice theory! I agree that some of the death rattled may be from Talenel, such as
But others such as:
seem to be from the viewpoints of common folk
2.) I personally believe the rattle indicating that three of the sixteen ruled is referring to Honor, Odium, and Cultivation, and since Honor is splintered yet still seems to have had the most impact on the world, (Odium was trapped in Braize and Cultivation has had minimal interaction with humans), Honor is the “broken one” who continues to reign.