Good point. But it's probably more accurate to say that "Reformation" is what Islam is going through before our eyes, in the form of radical Wahhabist, Salafist, jihadist belief and practice.
Wahhabism is Islamic Puritanism. That's fascinatingly explained in this article from H.W. Crocker which was a Free Republic thread a couple of years back (LINK).
Wahhabism (radical Reformation) calls for scriptural literalism independent of human reason or logic; destruction of statues, images, shrines; rejection of veneration of saints, strict moralism and the extirpation of all "impure" elements; conflation of Church and State on the basis of Cuius regio, eius religio (just like Reformation-era Church of England, Church of Sweden, Church of whatever-German-prince); et-freakin-cetera.
Radical and terrorist groups such as al-Qaeda and the Taliban, cannot be cured by Reformation for the very simple fact that they are the Reformation. Islam --- religious falsehood--- doesn't need a Reformation. It needs to be replaced by religious truth.
Islam is evil and must be eradicated. Been my tag line for years.