Only two immigration staff, one for non EU one for EU, long cue!
Well 10 DME ARC sounds like you should of [sic] stayed in Dubai for Christmas, you cannot blame DTVA for your flight predicaments and how many people can really be in a cue from a Fokker 70.
Although perhaps a little brash, N707ZS raised some valid points, the only thing DTVA can really be blamed for is the lengthy cue at immigration, and even then there could be a perfectly reasonable explanation.
Sounds like you were all snookered!
Cue:
1. A long, thin wooden pole with a small piece of leather at one end, used for hitting the ball in games such as billiards or snooker
2. A thing said or done that serves as a signal to an actor or other performer to enter or to begin their speech or performance.
"She had not yet been given her cue to come out on to the stage."
3."He looked at his watch and Sylvie knew it was a cue for her to leave"
Queue:
A line or sequence of people or vehicles awaiting their turn to be attended to or to proceed.
Simples!