I don't support what Epic did but whether or not it was justified is irrelevant here. A modification was made to the functionality of your device after the moment of purchase, that remains true regardless. And you could not have foreseen that specific modification to your device unless you worked at Epic and had internal knowledge of their plans.

You effectively need to know what every company in the world is doing to have any real idea what your device is going to be able to do tomorrow. Under those conditions I don't think you can say you were informed when you purchased it.