I work a ton with AI professionally and have found it to be truly incredible. BUT here's the thing, the term itself is far to broad to make any sense these days.
What most people mean are the free chat bots like claude or chatgpt. These are, by definition, general purpose models that try to be "OK" at just about any question a human could have. They are not designed to be specialised. Yes some of that has to do with the "garbage in garbage out" mantra. But it also has to do with training, priors and weights. That's a looong topic.
But if that's what's meant by AI, then I would agree. It is NOT suited for the application of technical knowledge to an individual context.
But just saying it's a bit harsh to judge a lowest common denominator model against best in class technical knowledge (as I would wager this forum represents for our hobby).
I personally have been working on, and will soon be asking you guys for help actually, on a dedicated technically trained ai for the aquarium hobby. It's a modest start but so far the results are pretty good.
The solve, and this works for any topic, is to build a solid set of data, then work hard and iterate through the cognition logic and set up agents and appropriate instructions, routing&progressive disclosure, then play around with embeddings and vector weights etc....then layering the info retrieval..how much is keyword search, semantic, vector, and when or if inference is used at each step..
Anyways getting too technical. I guess the main take away is this: the main reason companies are not getting value out of ai is because they expect utter magic from what is basically a very complex auto-complete program. But if you know how to leverage it's strengths and put in the appropriate knowledge work and iteration and lots time...it can be truly game changing I believe. At least that's been my experience professionally.
Its a marketing job that has overpromised what it can do for a given amount of effort. Reality IS garbage in garbage out, but applied to the effort needed to make it work for you.