Terri's parents WANT to keep her alive and receive therapy. The COURT has MANDATED that FOOD AND WATER be withheld based on a NOVEL idea that MEDICAL TREATMENT includes Food and Water.
I am not an expert by any stretch of the imagination but the Schaivo FACTS do not compare to the FACTS in the other cases.
The court hasn't mandated it in this case either. It has complied with the wishes of Ms. Schiavo's husband/guardian. The main difference between Cruzan and Schiavo is the dispute between the relatives in the latter case.