I well remember this book and what a big deal it was at the time. It seemed that we had a God given duty to expose old Babylon for what she was …. Much of it was based on a book by a Rev. J Hislop, “ TheTwo Babylons” . It seems that F Franz took his ideas and ran with them further.
I just checked the online indexes and it seems that the last reference to the Fall of B the G was in 1988. So it seems to be quietly have been allowed to slip under the radar although not actually denied…