Called a waste of money? It IS a waste of money.
I have no objection to stupid people wasting their own money on useless quack treatments. They've been warned again, and again and again and if that means they die, well too bad.
(Though of course children in the care of such idiots need to be removed immediately for their own safety, as the tragic case of that poor little girl in Sydney who died because her irresponsible parents put their beliefs ahead of her clearly deteriorating health.)