A better comparison might be the Iranian and French Revolutions.

The MB achieved power without true upheaval, and without an existential crisis that would have allowed them to rule in a state of emergency where they could demonize and imprison their opponents. Then they over reached and alarmed Egyptians who believe that all that they had sacrificed and fought for was about to be hijacked and mutated into a theocracy.

They should partition the country into Upper and Lower Egypt, before it really escalates into a civil war, as Egyptians try to stamp an identity onto their country, that a substantial number of their fellow citizens disagree with.