This aspect have had an interesting development. Now LP proponents argue that there’s no secrecy, the method has been published in books and articles. Recently in a conversation on Twitter with the most famous LP proponent in Norway, I put a screen dump from a course describing the process accurately. Then she said that that course paper had a copywrite and I had to remove the screen dump. Of course I did, She said that if I wanted to describe the process, she pointed to the book from Phil Parker, get the life you want now. (Which I suppose also have a cupywrite (!))
Anyway in this research project, they argue that there is no secrecy.