There is not an original thought in AA. It is a hodge podge of medical, psychological, and spiritual concepts Bill Wilson borrowed from 100 different sources. So it should not be surprising that AA is not the only way.
What is unique is how these concepts were packaged into a program that has worked for millions.
There were many things I thought would never work but here I am sober 5.5 years down the road. I was a late stage physically dependent alcoholic but so far I am leading a great sober life. I made it through the death of my daughter sober and that would not have been possible without AA.
As much of an AA fan as I am I believe we are cutting ourselves short if we do not keep our eyes and minds open to other solutions.
Are there other ways? You bet but for me I don't plan on fixing something that isn't broke because AA addresses the psychological, social, and spiritual aspects of sobriety.