Consistent does not mean true. When I was reading Yoga books, there were some real physiological and medical facts, and there were spiritual facts about chakra and prana mechanics, souls and reincarnation. I could agree with the former and disagree with the later. "There exists a worldview in which all of these statements are consistent" is a valid thing to say, but hardly useful. I am not reading books to learn validity, only truth. And if something is not true, you should disagree with it, not say "there exist statements that are consistent with this statement", especially if the cosistency of the statements is the reason why they are in the book to begin with.