because the catholic church isnt a cult, doesnt require its members to pay the church any money, is the oldest christian religion, supplies impoverished peoples with much aid, require its priests to be highly educated, has its priests take an oath of poverty.
while scientology was a get rich quick scheme made by a science fiction writer, members are forced to pay hundreds of thousands of dollars to get farther into the religion, they hide any public info released about the religion with lawsuits, they lock members into cheap motel rooms where they are deprived of food and water until they die.....
i think scientology fits the Nasty Destructive Cults label a hell of alot better then catholicism.