I'm not questioning the role of the Celestial Emissary - it's fairly well-established that the Healing Church created it as a means to communicate with the Great Ones, particularly Ebrietas - but I am saying that the Celestial Emissary isn't necessarily what it seems.

As for Kos... hm. Now there's a really good question. Hmm... eh, I'll have to think about that one.