Also called "Stream Stalking".
When we did the first German Live Stream on Twitch 2 weeks ago, some players were teaming up and were trying to queue at the same time to match with DN_Timo and DN_Hardy. Can't really blame them, at some point if you're trying to play against "competitive" you try to play in a team against a team.
It being because you found some new players you can win against and farm XP, or because you're looking for challenges, that's always been how matchmaking worked, you try to get as much luck as possible on your side to match their teams.
Usually taking 5 min off is the best way to get matched against other people as their team will be in-game already.