I've now also read Faith & Heresy, and I have to say, it's pretty impressive as well!
I don't normally like playing divine classes all that much, pantheons don't impress me usually either, and I find the idea of a character embroiled in church hierarchy politics *dreadfully* dull. However, I really enjoyed this article. It presented some ideas about divine characters and divinity in general that I really like.
One thing that had always "bothered" me about most fantasy settings, is that there was no option for a character to be "faithless" without being a god-hater, or considered completely insane for denying something that very obviously exists (at least within the context of a game-world). This article presented an interesting alternative - a viewpoint that doesn't reject the existence of the gods, but rather questions the legitimacy of the authority deities have to wield their power. If you can't deny them, the next best thing would be to consider them undeserving usurpers.