Well, this is a mighty interesting discussion. Better than a lot of what I have seen on these boards in a long time, and from what I can tell I think that I am certainly attracted to metatextual issues as someone who thinks about RPGs and fantasy when I am not playing them.
I certainly have no trouble with the idea that there are multiple levels of play and that they should all be recognized, engaged, and rewarded.
I cannot help but feel, however, that there is something missing from this model. Something that might provide flexibility to other styles of play and models of construction. I cannot, however, articulate what it is at this point, aside from saying that it seems to me that this model inadequately addresses the dramatic and ensemble aspects, or potential aspects, of play.
It may also have to do with my inherent distrust of Campbellian attempts to limit and construct myth.
What, by the way, is the reference for the seven angels of the seven eastern churches? I'm curious, I cannot place it as I can the other references.