In the nineteenth and early twentieth centuries, successful new "romantic" religious movements - such as Mormonism, theosophy, ritual magic and anthroposophy - very rapidly developed into complex, comprehensive and highly prescriptive systems.
It seems that this was necessary in order to attract adherents from within existing religions (which is where most people were). A case of like for like.
But now, people are located in situations of spiritual "absolute zero". What used to be necessary now seems an absurd level of detail. What seemed helpful guidance is now experienced as arbitrary external micro-control.
What is necessary here and now requires to be graspable as a whole that can intuitively be validated.