Good point, I agree that there seems to be an expectation for emergence to form the "penultimate field", or as unifying many fields. I don't know anything about the history of emergence/complex theory or such fields, but it seems like it is certainly worthy of all the enthusiasm, by virtue of being applicable to so many different domains, or at least that's why I find it interesting. Maybe it should be viewed instead as connecting/supplementing, rather than unifying, different areas of inquiry? And if so, how could that be a bad thing?