Mindblowingly new-old idea-question that would reduce queue times for DD's

[Pandastirfry]

Rather than a cheeseburger, think of an instance like a bus for a field trip.

The bus requires a driver, and a teacher to lead the trip.
Then students.

Currently we have a bus with seating for 4.
If we had seating for 6, more students could go per bus.

There is a problem with this analogy. If drivers or chaparonnes are in short supply then it doesn't matter how many seats the bus has, it's still not going anywhere.

Basically, I've played tons of MMOs with varying minimum party sizes and DFs, and everyone of them Tanks have near instant queues, healers range from near instant to at worst 10-15 mins, and DPS is can be at best 30 mins to well over an hour . Party sizes a little does little to nothing , it's all player demographics. Invariably DPS out numbers the other roles by orders of magnitude.