I have multiple times queued for a dungeon through dungeon finder, only to join and either get removed right away for whatever reason or the group disbands before I even finish loading.
I then have to wait 13 and a half minutes before I can queue again. In this situation I believe that is not right. It should be changed so that you don't get a cooldown until first boss is defeated or something along those lines.
Just my two cents.
Edited by Balestar on June 6, 2016 10:27PM Sic Semper Evello Mortem Tyrannis