Not entirely accurate; in fact any doctor has a legal responsibility to report any patient that has made threats of violence against other persons.
Very well. But to report and arrest are different things. Threats have been made against me, and there’s no legal action I could have taken. Someone once walked into my dad’s office and said he was going to kill him next time he came back. The cops said there was nothing they could do. Fortunately, the guy never came back. This just sounds like a lawyer trying to make money by spinning useless accusations in court. Nothing will come of it, likely.