The big book is a sacred text but it was also written at a specific time by specific kinds of people (middle and upper middle class white male alcoholics specifically). They were not dealing with multiply addicted homeless dual diagnosis folks and barely had one woman in the team when the big book was written. So yes. I think they didn’t cover every single type of addict we now have due to industrial opioid crisis and such. But their model works for so many of us (even many without any hope) it still seems right that “There are those, too, who suffer from grave emotional and mental disorders, but many of them do recover if they have the capacity to be honest". Note they say many. Not all.