you're talking like using /5 will get you a decent group within 10 minutes. most of the time it won't. if you have a couple hours after work then spending half an hour finding a group, all the time queueing and so only managing to get 3/4 games in, it no longer becomes worth it as the thing you're doing that evening
this is a game that demands time and rewards you greatly for putting it in but its difficult to stay focused on a class if you can only really play enough on the weekend. casual sc play always filled that gap of giving you something to do between putting real work in but they're not filling that role right now, they really are unplayable for those not already established
sometimes you get a few good games in, play with the same people pub vs pub, everyone has a great time gets to really learn their class in a low stress setting where its back and forth. then like a rolling mist of sweat a 6man shows up, destroys everybody for 2 games and so they all just log off, with each time this happens one or two of them never logging in again