It’s important to distinguish between people and program.
The people afford no rational ground for disappointment. They are people. Program is program. They are not the same thing. It’s like going to church and seeing a neighbor there who committed a crime. Do you blame the church for his behavior or hold the church responsible for what he did? Do you say “ok that’s it, this religion isn’t any good. Frank was at the service, and we all know what HE did!”
We are all imperfect. It’s what we do with those imperfections that’s important. I suggest you take some positive actions. Make an attempt to gently point out how things like gossip can be destructive for example. This would be a constructive use of your energies, and perhaps improve the atmosphere for the next new person who walks in looking for help. What we do is indeed important. But we are all flawed, thats the reason we are in AA to begin with.