queue time problems are in part player made and of cause in part SE made

as with all MMO's 80% of players role dps with 10% healer and 10% tank so basicly every time you queue you can assume that 1 tank 1 healer and 8 dps are queueing as dungeons only have room for 2 dps it makes the queue time for dungeons significantly longer for dps class's. it has nothing to do with the overall population of the server.

it was a nice idea in theory to make dungeons part of the storyline however in practice it leads to very long queue times for dps which makes a lot of players just avoid dungeons as much as they can.