One is free to take any degree program that you like but I agree that putting this PhD in a professional CV is unethical. In general, fields such as spirituality, personal development, etc you do not need a degree program. Thomas Francis asks for a short dissertation mainly because if it asks for a real dissertation, it will get zero students. Again, if I am interested in becoming a Yoga or Meditation instructor for 10K a year, I am not going to slave 5 years for a doctorate for this purpose. I love taking programs in meditation, spirituality, holistic etc but most of these courses can be taken for free in places like youtube and you have also places like udemy that offer courses for $15 bucks. The only reason to complete this program is if you want a serious career as a metaphysical minister or need the credential in paper so you can get insurance to put a practice. However, the ethical thing here is not to misrepresent your self and use a title like a PhD but use a title that represents more your work such as DD or Holistic practitioner or Rev or other title that does not mislead the public to think that you have a PhD in psychology and you are a qualified psychologist.