Well, so far in the latest patch we got the nitfy feature to Eject people trying to connect to the game. As Frogboy said, this is no silver bullet. It helps, indeed it does, but for the most part I still can not kick the people who are truely hindering the games from connecting. So far, it seems the Eject system only works if someone is actually connected to you. Falling short of the need to boot people who can not connect to anyone at all.
So far, the biggest hinderance to games in Pantheon are the people who remain with the status "The player has not connected to anyone yet". This is the real trouble we need to remove from the Pantheon, and they are immune to Eject Player.