The fact that Heathcliff also has an extra skill gives me the impression that everyone else should have them too (how many other unique skills could have possibly been put into the game for 10,000 players, without leading to more than a few useless ones?). When you take that into consideration, at least PvP isn’t as broken as MVP. Kirito showed how broken these skills could be when he raped the boss of the previous episode.
Ah, whatever. The highlight of the episode, to me at least, is the fact that it solidifies Kirito and Asuna’s status as the official couple.