There are roles. Complementary, alternative and other such remedies all have a role to play in medical care. However, it is important to have all of the facts about a disease before just using one approach. Steve jobs used alternative treatment for his pancreatic cancer, when he probably should have gone with tried therapies first. It is a great "back-up" but it is not a substitute.
AMA Reveal? . I'm not sure i fully understand your question. The ama is a trade organization;only 17% of us doctors belong to the ama &77% of doctors in a recent survey say the ama doesn't represent their views.The ama originally formed to fight homeopathy & has been found guilty of illegally conspiring to suppress chiropractic, so what the ama "reveals"about cam should be taken with a grain of salt.See comment:.
Proven vs unproven. By definition, "alternative" is different than modern western medicine. Generally any drug, herb, treatment, or procedure that stands up to rigorous scientific scrutiny is included in modern medicine. The problem is that many alternative practices, herbs etc do not stand up to scientific scrutiny and cannot be shown to work. They therefore remain "alternative". Be careful and watch your wallet.