Yes it would.
One thing this game seriously needs is something definite, something different from the "you can do everything you want but since that is kind of impossible everything is kind of the same".
I'm not happy with the choice to make CNJ and THM into pre-white and black mage because I liked them before, but it was needed to define their roles.
GCs are kind of the same:
If you were able to hop from one GC to the next all the time, there would be no sense of belonging to something.
It would also be the opposite of what a GC actually is - an army of rival cities.
I doubt they'd just let you go and join their rivals..![]()