The GM teams consist of four level 75 players. I also assume they're using top of the line cash gear that we don't even have in shops yet, full accessories, and what not.
What they need to do is develop some GM command that clones someone elses character. I've seen similiar commands in some other games. Then each GM chooses a person to clone based on their skill with the characters, and the team basically fights themselves. Then it'd be skill based, and the player team may actually have a chance.
When they were doing the scrolling announcements, teams were literally lasting 30-60 seconds before an announcement that they got beat came about.