Great post H. I've read it se real times now and, at first, I really liked the idea but now I'm not so sure.
Seswatha was seemingly instrumental in stopping the first apocalypse, so why force the second?
One possible explication for that would be for him to be working with Shae, as an ally, rather than a mortal enemy, then, the mandate and the skin spy hate towards Chiara is all misdirection. They needed the 2nd apoc, but they needed everyone to belive in the struggle between the two sides, between good and evil, to truly bring it about.
Seems like a. It of a stretch, but there are enough hard truths in there for me to accept it.