Quick play in general is dead. Yesterday i saw the same kind of thread from someone about Quick play in general. This was my response (it also fits here):
There are some easy fixes to make the game modes in Quick play more popular:
Just delete Quick play as feature of the game and adds EW and BR to the ranked queue. This means you will be playing against about equally skilled players instead of random players. At least this will work for EW. I am pretty sure about this. BR seems to be more like a drinking game with friends. Not sure if such kind of game mode will succeed on ranked.