I think I know the technical answer. Gibbs is representing the parents of Terri, not Terri. It is a charade for Greer to even pretend to let him make motions and participate to any degree, because Greer has made it plain that he does not recognize any standing in the case other than himself, Felos and Michael. He is "allowing" Gibbs to participate, up to a point. But when they held a conference of the parties, Greer excluded Gibbs because he considers him not a party to the case. Technically, he is correct, but only because he has ruled that the Schindlers are not parties.
If Judge Greer was truly a Judge he would have removed Michael Schiavo as the Guardian of Terri and stated he is NOT a party.
The Legislative Branch has the power to Impeach Judge Greer.
Those who are residents of the State of Florida should call them and tell them to do so.
I thought that the ruling was that the Schindlers were not parties to the Terri's Law case only. Otherwise, I thought they were parties to "the case," "the case" being Schiavo v. Schindler.