Edited post
queues would go up if a premade would wait for mirror premade to queue.
The better question is what’s stopping you from premadeing yourself?
Fun. Pug vs Pug is more fun.
Haveing fun and premading are not mutually exclusive. You get what you put into it.
I’m on your server, Dot. We have some absolutely fantastic premades on Alliance side. Id argue that wiping a Horde Warlord premade is arguably much more fun than any pug v pug encounter.

Haveing fun and premading are not mutually exclusive.
They aren’t, but the game style is completely different. Like how random hoops game at the park is much different than a professional NBA match.
I enjoy both. I just enjoy pug more. So, if the current state of WSG makes only Premades legitimate, that is a sad state to be in.
I prefer pug vs pug. If i wanted to jump in discord and premade i’d do rated bgs in retail. I like to be able to just jump in to a game and kill people and assist in objectives. I’d rather segregate premades from pugs like retail with rated bgs and random bgs.
also prefer pug vrs pug. when i BG its usually a game or two. its not even worth making a premade for 1 or 2 games. id also rather not have to log into discord just for a bg.