The so-called “debate” is simply heckling from the peanut gallery. It is equivalent to hiring witch doctors with beads and rattles as advisors to the National Institutes of Health or publishing Truther conspiracy theories as an addendum to the official report on the 9/11 attacks.
There's plenty of things that we don't know with absolute certainty. The NIH has spent significantly on alternaive medicine. We don't understand the placebo effect. If it helps their faith, good for them. They'll probably live longer. I keep coming across studies like this one.
Religious participation and mortality risk among the oldest old in China.