I have no clue whether the blind judge was hindered by his blindness is deciding the case; I describe his as blind judge because he is a blind judge and in order to bypass rules of this forum that prohibit swearing.
If Terri had a recent to her incapacitation living will to that effect, the law would probably had been followed if she were euthanized. No, it would not have been morally right anyway, because no one has a moral right to suicide. The legal possibility of euthanasia in the presence of a living will is another argument for all honest people to ignore secular laws and live by their conscience and the Church law instead.
Well, when we change from a representative republic to a theocracy your point will be valid. In the meantime, feel free to ignore secular law at your own risk.
Florida law states that Terri may refuse artificial life saving measures, whether her request is in writing OR VERBALLY.