Dear AC, people really believe things. Really. They have values.
The holistic "healers" really believe that they have science on their side, or that they are being scientific. It is just like Ken Ham, and Lord Monckton.
That is what makes the situation sad. Not everything is about money.
The placebo effect is very real, it really works, and that's what this is, ie. placebo in the guise of "Energy Medicine" instead of a sugar pill.
Yes, it can cure, it can help people, but not people with real diseases/illnesses.
In no circumstances should it substitute proper science if there's something seriously wrong with you.