You complete the dungeon but not the timer and the key stays the same level. Everyone wins and much less likely for people to drop.
And it’s not a git gud scenario. I found strategic pulls and maintaining CC with proper kill orders far more strategic than overpowering with gear and meta putting enemies in a ball and aoe’ing them down as fast as you can
the former it was easier to be social in a social game, the latter you don’t even have time to be chatty with your own guild