I'm not familiar enough to know, do the imams and other leaders command the almost celebrity-like awe and grandeur that a lot of these evangelical / baptist / prosperity gospel "pastors" in their megachurches do?
Because half that list is about having some sort of infallible (mortal) leader that is obeyed w/o question.
If so, then yeah, add Islam to that list. No complaints from me. Whether or not it meets the criteria of a cult, I don't have a high view of it.