I'll offer my experience here, for what it's worth. I have a number of years experience in the A.A. fellowship, but far fewer of those years actually working the program of recovery.
Alcoholics Anonymous is a 12-step program, started in 1920's, codified in the 1930s.
Since 1934, it has been a very successful program in helping the true alcoholic to achieve long-term sobriety. Worldwide, there's some millions of alcoholics who have been become useful individuals once again, through "applying these principles in all their affairs."
In other words, the ones who are successful in the AA program are those who follow-through to actually work the program.
The AA program NOW, currently, works in 5-8% of the time, not because of a flaw in the program. The AA program helps all those who work the program.
Yet, in a society where "you all are winners", where people like to cut corners and often act selfishly; where people want to think of themself as god, etc., etc...(as addicts are wont to do) then it is not surprising that the program works in 5% of the cases.
When the true alcoholic works the program, he will recover, and he will not want to drink again. It's that simple.
Yet, doing this easy-yet-difficult program can be problematic for the individual not-yet convinced that s/he is an addict/has an addiction, that s/he has an allergy to alcohol. Taking the steps of recovery can be difficult for those who think that they got it all figured-out, that s/he just needs to cut down their drinking, rather than stop entirely.
The program is not successful for those who can NOT adopt a Higher Power of some sort. This Higher Power only need be the experience of the group (Group Of Drunks), and the confidence that if they can do it, any one can.
For the bulk of the 95% who have not been successful; were one to ask those people what the condition of their daily spiritual life is, they will largely say "it's ok," and yet on closer examination, one finds their spiritual life is in shambles.
The SAME EXACT THING is relevant to taking the vegetal (hoasca tea), or taking a ride on the DMT flash, or on any other entheogenic substance. If one undertakes a "voyage to knowledge," without the correct, proper spiritual mindset, and without doing some spiritual/emotional preparations beforehand, then results are disasterous.
Nothing is automatic.
This statistic of "success rates of up to 80% in hallucinogen based addiction programs" is based on a much, much, much smaller sample population. In early days of AA. the success rate of the program was much closer to 100%, because people did the work and applied the program to their own lives. Any program where folks have a sense they need to do the actual work, will lead to a high success rate.
I personally am of the opinion that an entheogenic-based sacrament can lead to spiritual development, but the one needs to WANT to have a spiritual experience. If the one is not interested in a spiritual experience, and a spiritual way of life as the potential solution, then in these cases, there will be no success.
Nothing is automatic.
There is no progress in addiction without work, and without sacrifice of some sort.
For me, alcohol mainly, as well as other substances, substituted for a spiritual life, for spiritual development. I personally don't find noteable spiritual development without work attached to it.
This is not the problem with the Universe, but with the human. For the sake of the human, it needs to do the actual work of work, to reap the spiritual benefits.
So whether we apply this to do the program of recovery, or working the program of Extraction, or working a spiritual path of learning to live without opiates and common pain meds, the analysis ends with the same product: work in equals spiritual benefit out.
On the so-called 13th Step.
There are those who are "dually diagnosed"; who have an addiction, compounded by mental health issues. I'll categorize myself in this fashion. I go to regular meetings throughout the week, and would not wish to change this. There is a strong program of recovery, with many people supportive to this life of recovery. The program works very well, for those who do the work. Yet, I have substantial "mental health issues," which the program doesn't venture into, and gives me the directive to "seek professional help" for the depression.
Enter the vegetal.
After years, and years of mental health counseling, I arrived at a few unsavory conclusions.
The first conclusion is that if I don't know what's wrong, and can't tell it to the doctor because maybe I don't have words for what the problem is, then my issue gets misdiagnosed.
This is followed by the conclusion that speaking in words to any given doctor is going to result in a misdiagnosis of my "condition."
An important conclusion is that doctors are unable to supply a spiritual resolution to any issue brought before him.
At one point I presented the idea that my depression was the result of my heart not producing a particular enzyme. The doctor thought this absolutely absurd, and prescribed Depakote. As a result, I came to the conclusion that only what is patented, and only what can be packaged by the pharmaceuticals industry, is what Western medicine will perscribe to the patient.
The vegetal tea does alot to help with this depression, and other "ailments."
More importantly, the vegetal tea shows that these "ailments" are quirks of personality necessary for the work I need to do in this ailing, sick society. Part of the sickness itself, is a product of society which is a material-based, consuming, commodity-driven oasis. If one looks at all the crap of society, and takes it on as his own issue, then only depression and illness will ensue.
Society makes its adherents sick, so that they will support the sickness of society. A spiritual path (of recovery) is the resolution for society's illness.
The Omniverse will always provide the answer. This is the easy part. Ask, you shall receive.
The real problem comes once you know. Playing dumb is no longer an option.