Do you agree that this conclusion applies to the way the network is now and the way it has always been?
I ask, just because I want it to be clear to readers that this "point of contention" is about a hypothetical future scenario. And that we already know that there are hypothetical future scenarios, such as mining centralized around a single super pool, that would be bad for Bitcoin.
Actually, I'm interested by your work because if the model is sound, it's useful for the present...and the future.
Anyway. One step at a time. The next step should be to validate the model against actual data.