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.
You are really stretching now. The U.S. Congress passes legislation that effects one person all the time. Show me where, in the Florida Constitution it says the legislature can't pass a law that effects only one person. The fact is, if the legislature and governor pass a law, it doesn't matter if the judge doesn't like it, it's law.
Are you really saying that with a straight face? The way the courts ignore stare decisis and every other legal concept? That's rich. It still wouldn't apply, the legislature passed the law.