I've been in so many groups where I've befriended the players and wish I could re-queue and tackle more content with the same people...

Why isn't this possible?

Benefits.

1. Beat the Queue Timer.
2. Enjoyment from playing with like-minded players
3. Create friendship from across the globe

Cons.

None.

Square? please don't tell me this is a "limitation of the servers" because that's highly unlikely.