Until they fix the premade queueing against pug, and not split them to face premades. I will leave every time there is a premade, I do not feel like getting rolled by premade and wasting time. If you will add me even 1 hour deserter debuff, because I will leave when is premade, then I will just go do something else for 1 hour. The only thing you will acomplish is making your queues longer.
Regards