The problem is: Players give up too easy. When things get tough they quit.
That's not necessarily true. I was playing Alderaan CW with a PUG yesterday and we got smashed by a WH-equipped premade, with obvious full voice comms. The frustration was evident in Ops chat but not one of the group quit and went the distance with the whole miserable scenario. In my experience as a casual player (with RL family, job, dog, house, yard, etc), this is not the exception.