That always a possibility, but again that too quick to talk about it, as much as i know, nothing make SE unable to make everyone happy by reviewing this update. Way a better option then loose more player.
Example, DEV could come in this thread and say: Hey guy, dynamis wont be 'an open zone' and yes multiple instance should be created.
Can be sure i would be super happy about it. But again that just a solution from many that SE can figure out.