Why do I have to wait for an instance if I have a full group already? What the hell?

As the title states, why, when you take so much from WoW and other MMO's, do you not take and copy the fundamentals that make the game run smoother?

If I get a group of 4, we should be able to zone into any 4 man dungeon with zero wait time. This makes absolutely no sense. Every other MMO can do you, why can't you?

Are there any plans to address this? It is absolutely unacceptable.

They run 10 year old servers.

I'm assuming you're talking about Amdapor Keep? The reason being is that because people are speed running them, there simply isn't enough slots for that instance available. Makes me wonder if the actual instance stays open the entire timer. If people were running and leaving quickly, it should have a faster turn around for instances, but it doesn't.