1. who cares about AK? u only need a quick run for your relic quest...
2. i think cuz they are required to progress the game with 2.2....noone wants to play a game where u can not progress cuz your unlucky with pugs over month
3. i dont even unlocked it, so i cant say much about it and its difficulty
4. if i understood that right, there's no echo buff for premade groups, so no 1 tank 1 heal...