If you're a 1700+ rated player and you see 20 people in the TMM queue, you still often can't get a match, even though there are clearly enough players to create two balanced teams.
However, if you queue with a lower-rated player (around 1000 rating), the system finds a game almost instantly, and the teams are usually well balanced.
Why can't the matchmaking system create that kind of lobby from the start instead of making high-rated players wait indefinitely?

