User blog comment:IamJakuhoRaikoben/Chapter 368: The Third Seal, Review./@comment-4896357-20140124140438/@comment-7418318-20140124140721

It does not mean the end of the world.

Face would "only" destroy magic and "only" on this continent. And just releasing the seal will not immediately trigger Face, so even if the seal is broken, the mages can still prevent it from being activated.