It doesn't seem like that would be fair for his client. Fine the lawyer, or hold them in contempt. That's how it's supposed to work. If it continued or was a purposeful intent to mislead, rather than carelessness, then, certainly refer to bar or jail.

Rules about ai need to catch up. Until people in general are more familiar with hallucinations and lack if hehe I in AI, it wouldn't be just to hold people more accountable for its failures beyond other tools. It should be treated the same, just as other misinformation and misleading statements have been in the past.