I think playing a drone is rather fun if we're at war. I for one would welcome having more characters to play as, and don't really see the argument for the really low limit of 2 nobles starting out for a new player.
Don't get me wrong, I've had fun playing a drone, especially if the realm has good, and active, leadership. Though, historically most my knight or minor lordly characters are really boring to play.
That said, I don't think the character limit improves the game, and newer players should be able to play more than two. I just don't see how that removing it helps the game.