Judge Greer is also ignoring a law passed by the legislature and signed by Governor Bush last year. He claimed it was a violation of separation of powers. The whole point to our system of government, is if a law is disagreed with, the legislature creates a new law, and the executive signs it into law. If creating Terri's law was a violation of the separation of powers, the isn't every single ammendment to the Constitution as well? The legislature did exactly what it was supposed to do in that case, and the judge ignores it. He isn't responsible to the laws of the state of Florida, only to himself.
There's a difference. Usually, when people don't like the outcome of a case, they change the law for the future. Not so in this case, where they changed the FL legislature and the Congress changed the law during the trial. In the case of the latter, it was a designer law that would only apply to Terry Schaivo. This stands starae decisis on its head.