These alternative treatments need to be researched and developed, since our bumbling system of giving drugs while draining patients of all their money does a lousy job in curing patients. Ideally, people with these diseases that are more afraid of the treatments or that simply do not want all their money going to fund our mass enslavement should have these treatments available as an option. Or, in conjunction with more mainstream treatments. This would leave mainstream treatments open for those who want them, but in competition with other alternatives. While many of these alternatives would be quacks and scams, the good ones would be publicized and attract business.
But, putting all your hopes in something that is based on a death cult is just as dangerous as putting all your hope in drugs and surgery (though it may not be as damaging financially, unless the cult takes all the money as well). There is nothing special about water that some filthy angel has blessed (and the foul energy from those angels can be as bad as the drugs you get in the hospital). Besides, patients are usually not allowed to do outside research on their conditions and the treatments (and I advise that everyone with a medical condition or at risk of developing one should do such research before committing to anything).
And, if they want, they can try these novel treatments. Especially with diseases where the treatments offer barely anything better than nothing, at great expense and hardship to the victim. These machines should be available for those who would rather take the chance of its not working instead of the harsh drugs (or in addition to the drugs, to make them work better). This goes for supplements--they might not work, but they might improve the outcome or make the drugs work better or safer.
And who knows, without the shackles of the angels and their filthy medical and religious programs, a few of those patients that use alternative treatments could lead to a breakthrough that would actually cure diseases with a minimum of fuss and risk. In that case, even if some must die because the doctors are experimenting, their deaths would lead to other lives being saved. And, it would be their option--instead of drugs that barely improve their outcome for no gain, they opted for a treatment that did not work so doctors could learn from their mistakes. Which is more than can be said about cults--those cult "treatments" never result in someone learning from failure, and never lead to cures.