There are 2 broken aetherytes right? 1 on each side of the map if i remember correctly. Possible solution: Side Quests to restore these aetherytes that allows the Idyllshire Aetheryte to allow teleportation to 1 of the 2 exits like aethernet in the big cities. Granted you still have to port to the Idyllshire but you wont have to run to the gate.