This may have been brought up here before, but it is ridiculous that at this point there isn't a shorter unrated game mode.

No matter the ELO nearly half of unrated games are surrendered. Sometimes even by the winning team. It is so simple too. Just add a game mode half the rounds of an unrated played the same way, or make a game mode like CSGO has one where it is a shorter unrated 10 vs 10. Maybe even replication without everyone being the same agent...