Yes, one thing it absolutely has to be good at is referring patients to human therapists, for anyone who need something beyond the standard strategies the AI is trained on. It has to be smart enough to know when to give up.
Edit, it would also be great if the AI would match up these difficult cases to therapists who are known to do well with whatever the patient is dealing with, as well as matching according to the patient's personality, communication style, etc
wherever possible