i read your title and said: "of course!"
they're people.
ordinary people. all sorts.
why wouldn't they disappoint you? what are your expectations when you go into a room full of people?
glad you're doing well. since there are suggestions from long-sober people you're not interested in following and don't want to do the sponsor guidance through the step-stuff, i'm guessing it's the fellowship you're there for?
nothing wrong with that, but it is not the suggested program of recovery.
just pointing that out. it's likely the reason why the "oldtimers" aren't interested much in spending time...you've made it clear you're not interested in what they're offering.
nothing wrong with any of that.
and nothing to be disappointed about.