It reduces queue times as a game only needs 2 Tank roles instead of 4 Tank roles. Having 2 less players per game makes it easier to match up teams.
I still think it should be 2 Tanks, 1 DPS and 2 Healers. 
It reduces queue times as a game only needs 2 Tank roles instead of 4 Tank roles. Having 2 less players per game makes it easier to match up teams.
I still think it should be 2 Tanks, 1 DPS and 2 Healers.