Fed up getting into a good battle then half way through someone leaves and their side is no longer in control - you get the notification that they’ve left and so you’re on your own to finish, it’s pointless and nigh on impossible to win on your own.
Easy fix (yes I know not easy for devs but still…) make it so one player can control both sides, as long as the other person has been removed by HS for AFK; it means you can still go on to have a chance of winning.
I actually love Duos and think it’s a great addition, but relying on others sucks and once they’re out you might as well concede.