Whereas Christians (in particular, the Catholic Church) will discuss reform and doctrine in Councils, Synods, and among the Clerical Hierarchy; Muslims will spill their debate on the public society, and people will be effected, often terrorized, by it.
In other words, everyone in the global sphere “participates” in their theological debates. Eventually, they will see some of their errors by the outplay of it all, and thats the reform. This is the problem of the Imam/Sheikh/Sultan/Caliph-nature of Islam. Who is what? There’s no unified authority to speak to Islam with. Leadership is arbitrary. For example, even in the largest Muslim sect, Sunni Islam, who’s the highest authority? And which Sunnis are in union with that authority or fall secondary to that authority? It’s all debateable.