Islam also has some "safeguards" against any sort of reformation (Madman Mo' was "the last prophet", so no one can undo his work); the only "reformation" for muslims is to reject Mohammed and return to the Old (Judaic) or New (Christian) Testament and reject this ancient cultist's rewrite of the Judeo-Christian Bible.
They just have a identity problem as Ishmael was cast aside for Isaac and they haven't forgotten it.