I can only think of one reason for the Egyptian military to cancel the peace treaty. The peace treaty prevents them from acting on the Gaza strip. There is no love at this point with the pailis in the sinai and gaza. Just something to ponder.
This is the same bunch that were chanting “To Jerusalem we go, martyrs in the millions” but two years ago; those in that video were not all MB by a long shot (otherwise the MB would never have been deposed—ponder that), and revoking the peace treaty (take note: peace treaty) between Egypt and Israel unshackles Egypt to charge right up to Jerusalem’s door, wherein even considering allowing Egypt’s military into Gaza is suicidal for the Jewish state.
How can one even think that that treaty stops Egypt from dealing with the MB in any way, really? Revocation means the end of Egypt recognizing the state of Israel, in an instant (which is not a vindication for Carter, take note; merely a fact).