MR_SLINI just played a 20 minute game, they can be long since the rounds don't have time limits, only the 10 min capture limit.
20 minutes is far from long enough for a matchmade game. CS games last for around 50 minutes. That's a lot more reasonable and it actually enables you to get to know your team of randoms a little bit. Isn't the entire point of this that pubbers get the chance to play in a more team-based format?