I've never posted here before, but I'm a regular reader of the forum. However, I have a theory that may be totally crazy and it isn't backed up by any evidence. Adolin does not appear to broken in the same way that most of the other Radiant's are. The guilt he suffered over Sadeas' murder doesn't seem to qualify as at the end of the book he makes it clear he felt he made the right decision. What if instead of him speaking the words of the Edgedancers, Mayalaran has to speak the words to be revived and create the Nahel bond? It is clear that Maya is regaining some semblance of consciousness and quite frankly I find the symmetry appealing. Also I factored in the fact that Adolin didn't have anything to do with Maya's initial death.