There was no course of treatment.
The case was not about courses of treatment.
Judges may not legally practice medicine any more than guardians may practice medicine. They do not decide courses of treatment. They have no qualifications to do so.
There was no treatment involved, ever. In fact, Michael cut off all therapy for Terri in 1993. She never again was given the care that the jury award specified. Her trust fund was stolen by a dishonest judge and conniving lawyers who then used it to kill her.
I trust this does not meet your standards of private family medical decisions.
The case was about whether Terri's guardian could determine the course of her treatment, as advised by her doctors.