No question, AA helps every single person it helps.
Too bad about the uncounted millions it doesn’t - the ones who can’t cope with its pseudoreligious tenets or public confession or other aspects. Too bad AA smothers nearly all alternatives to the point where many people are not even aware there are alternatives; they hit bottom, try AA, can’t make it work… and continue their ethanol-fueled destruction because “they tried the only option and failed.”
It is pseudoscientific nonsense that “works” the same way astrology or Scientology “works” - for some number of people, its mythology gives them something to hang onto and learn to focus. Most addiction specialists and behavorial researchers know a dozen better, more solidly-grounded approaches that don’t have AA’s flaws… but AA is the 500 pound dog in the manger, blocking any real possibility of a better system taking root while doing far less good than is generally supposed.
Works for those it works for, though. Just like any woo.