CHM and other programs are nonsectarian. To my knowledge you must be a professed Christian, affiliated with a "Protestant" church. I don't believe just anyone can participate. Part of the application process is a recommendation from your pastor.
A good friend and fellow agent is Jewish and has been intrigued by this concept. He says there are no equivalent Jewish organizations.
I think the Protestant issue is plan specific. One of the brochures I read specifically allowed Catholics. And only some of them require pastor signoff.
I wonder if you smoked in the 80s, were saved in the 90s and then got cancer in 2016, is THAT covered? Or can they say it was due to non-Christian behavior, so its not covered? Or is it pre-ex, since it was caused by "pre-plan coverage" behavior?
I'm sure there's lots of creative ways they can decline the claim.....