How much were the Zeitoun Marian apparitions associated with Coptic Christianity?

The subject is important not only because of the use of Zeitoun by Roman Catholics, but also because of how positively other non-Copts view the apparitions. Given the closeness of Coptic Christianity and the Zeitoun apparitions, how do non-Copts reconcile an acceptance of the apparitions as Marian with their rejection of Coptic Christianity?