The outcome of a case shouldn't depend on someone's fallible ability to recall facts or convince other people or point their index finger*
Law should generally be deterministic. One's CHA stat should have no bearing on justice.
There should still be human judges, but the middleman between the judge and petitioner could easily be removed, and have generally been seen as leeches since forever anyway.
Though, like how the USA opts to remain in the Stone Age with regard to tax filing because of lobbying by tax software companies, this faction of society will flail the hardest before they admit they're obsolete.
----
* What's a lawyer's favorite programming language? Objection C.