Thing is people stopped using the solo queue because they are tired of random players that can't play their class and rage when you give them advise . Everyone just forms a premade group nowadays and that's it .
Make a premade group and queue all day , problem solved . I personally don't want to get punished for leaving just becuz my team consists of me + 4 full greenies .
The T2 dungeon drops T2 loot on top of the coins it awards , it's actually a personal preferrance which dungeon you want to do and how much work you would like to put into the PvE and the PvP part of the event .