Yes, that is first of all for the survival of Makedonia in Greece. They are usually not able to hold themselves in Pella, but really have a good starting position in Asia.

I think if we would rename the faction "Epeiros" into "Aeikides" and "Makedonia" into "Antigonides" (not ment as a serious suggestion) no one would be complaining, because Makedonia does not disspear it simply changes from one ruling hellenic family to the other, while the former rulers of Makedonia create themselves a new Successor Kingdom in Asia.