A "Qizilbash" manuscript

In a polemical Zazaki text dating to the late 18th or early 19th century, an Qizilbash (Alevi) author sheds light on the religious environment of Kurdish-populated areas. His work constitutes a rare witness to the persistence of syncretic traditions, featuring a particularly noteworthy passage on the adaptation of Islamic practices and narratives within syncretic religions. What was the function of the borrowing? 

If Qizilbash [Alevi] religion preserved a great many Islamic traditions in its literature, this is not a proof of a substantial Islamic part in the formation of the Qizilbash doctrine, but only of a Qizilbash urge to adapt and assimilate Islamic traditions to its own ideological concepts.