Yeah the law firms just haven't caught up yet. But they will.
Law firms are cautious about AI tools, they got burned a couple years ago by hallucinated citations.
Citing made-up cases sure looks like lying to the court, which is a punishable offense. Lawyers have been sanctioned, fined, and in one case received a 30-day license suspension.
And when the judges get around to the case in 300 years after all the other ai court cases, we'll be beyond caring about the consequences.