I think the confusion here is that people anticipated something like battle.net's ladder, where every player's performance is tracked and when they search for a game they are paired with an opponent who most reasonably matches their own skill level. Instead, this appears to be a service designed to help you find who is available currently for any impulse game.
The Sins community is small enough, however, that frequent online players will get to know each other, so the ability to know who is available at any point in time is probably all we need for our purposes.
