I realize that back in 2004/05 ish time frame there are interactions with GMs who entered games, interacted with the players, and assisted with some things right on the spot. Even that was rare, and those days are long long gone. They don’t interact directly in real time with players, much less enter the game anymore because they have tools that don’t require it. They don’t fix individual bugs in real time, esp not raid related issues. You might see something different in an Alpha or Beta where they Devs are running a real time play test and monitoring, but not in the live game.
You can read a lot more about what GMs can do, or not do, here. It might help with your expectations.