Hah, Sci. I can see we're both posting here and Westeros at the same time. You just answered a question I asked over there not a minute ago.
EDIT:
What I said over on Westeros:
Has Bakker himself described it as thus (as in, as he actually described it as a metaphysical whodunit)?
The thing is, I think a lot of people have probably already guessed the broad strokes of the story, the problem being that (as you recently stated) the whole damn thing is so ambiguous that even if you actually did figure it out, there are too many unanswered questions for any kind of certainty (heh).
I mean, I honestly think Bakker himself could come in here right now under a different name and just lay out the basics of the series, piece by piece, and a lot of people would still take issue with it. Until that shit's in text, in a book, and the series is done, everything's up for grabs.