You misunderstand.
Cross faction queues, as in, you queue up, the game places you (and your group) into either faction. You don’t get a choice. It would make queues faster and allow the game to better balance healer ratios.
Debuff for dropping a queue. Dropping a queue causes a stacking debuff which prevents you (and your group) from requeuing within a period of time which increases the more you drop.
And ‘no show’ to apply for both rated and unrated content, and prevent queuing for PvE as well as PvP.
Separating the queues is no longer an option.
The reason you see premades so often is because we are now the largest population mass queueing for epics.
Pug queues would blow out to hours long and premade queues would remain quick, you would essentially be preventing pugs from ever playing epics at all.
This was discovered in SoD, where Blizzard tried it.
I don’t know how many time you need this to be linked before you actually read it, but I’ll keep linking it till you do.