Hmm, I never paid attention to that part. I did use that and other WoBs (https://wob.coppermind.net/adv_search/?query=Patji%2BAvatar) to try to deduce Avatars' nature though
Besides, I think this is the correct answer, as I've already stated:
The "dead god(s)" being mentioned is/are not Adonalsium as the book was supposed to take place before the Shattering
Update: answered, found a WoB:
In the Liar of Partinel, it is mentioned that Fainlife first emerged from the corpses of dead gods