Without a server cap or instance limiting cap this is what happens. Chances are a lot of the que is coming from instances that are still open after the "speed runners" have a wipe and bail on the instance. Yesterday, at a safe estimate, I would say I entered probably 8 AK runs that where abandoned. And probably twice as many with players that were under geared for the content.

There are several features that aren't in the game that should be such as an instance cap and gear/item level lockout for specific instances. Being in AF gear with level 28-38 greys and aetherial gear isn't enough to do AK.