The style of writing has certainly changed in lots of respects. The overriding difference is that vocabulary and sentence structure has become simpler, some would say dumbed down. The tone is also less belligerent, in particular against other churches, for example. Some old commonplaces have disappeared, such as the old references to “the society” and “classes”, as in the “John class”, “bride class”, “other sheep class”, or perhaps the best: “evil slave class”.
Many have commented on Franz’s distinct style over the years. I wonder if you could provide an example of a book or other publication you think displays this style most clearly.