You can easily have divine forces without gods. How about animism? So far we don't have gods, and I think it has worked for us. There are celestial and infernal forces, but that doesn't mean there has to be an aloof Creator. In fact, I think that with our Shai'tanesque version of Taufenacht, we should steer clear of this specifically to avoid too much of the transformation into a WoTish cosmology. And I think you've misunderstood me on the flavour of Eyros. It is true that the facts have changed much with one post (Thanatos, planes, etc), we have never really changed the flavour of the setting. That would be like if we had a post that started to add Oriental Chinese material, changing our Romanesque flavour, or a post that tried to make Eyros a society with large amounts of magic-users everywhere. Neither of those facts are specifically prevented, but both would change the existing flavour, whereas Thanatos and the planes did not (we already had necromancer gnomes and celestials/demons by the time of those posts).
This is just my opinion, and since no one has backed me up, perhaps I am alone in it. Just giving my two cents.