Hopefully blue's will notice this, since it might work.
Usually i don't agree on resolving a problem by handling a certain specific issue, i usually just like to eliminate the baseline problem.
Dungeon queues in particular i have no real idea on how it's designed to queue certain classes/armor types so i can't determine the baseline problem
Though i do have a sideway solution to this. Considering the large amount of time lost on waiting for the queue to pop up, i'd advise the developers to take into consideration the possibility to relog another char that you actually need to do stuff on and occupy your time properly until your queue time is up. So when it's time, you press accept and either it relogs you directly to your respectively queued char or i don't know how they could manage this x)
I myself always have loads to do on alts rather than my main that i just log to do daily heroic. Spending time on doing something useful fills in the gap on those time eating machines we call LFD and makes it seem like it wouldn't take that long either.
My 2 cents though. What's your opinion