>- these green stones are just congealed bile formed in the intestines
Not always. While it is often true that the congealed bile will form these green stone, there are many documented cases where the green precipitated around smaller chaulky white cores which are real stones.
There are alo other cases where actual larger stones collected that have been analyzed as true gall stones.
>- but I don't think it reaches beyond the superficial in terms of healing abilities
You are just ignoring many cases of significant improvement that have been previously posted on these forums, including people who were told that they needed surgery and who avoided that surgery by flushing.
Just like anything else, the Liver Flush is not perfect, but if at all possible, it should be tried several times before going under the knife.