Oh I forgot all about the interrogation scene. Now I can see it.
Until you merge I'm just gonna 'fanboy' away for now.
At first I thought the new prejudice again non benders was.... well... new. But then I realize the non benders were mocked like Sokka's early comedy relief as being useless and non benders being oppressed like the episode where Zuko is wandering and comes across the Earth Kingdom family who's older son died in the war and the earth benders in the army harassed them because they can't fight back.
But in the new series this is the obvious main theme now. Then the shift is going to be exactly like Sokkas change in the later half of the series making up for it with skill and an over the top 'space sword'. I'm really curious on what technology exactly is going to be able to stop all the elements and now Metal bending which is common place. They showed how high tech the metal benders were with almost robotic doors they could control.
(Weird little fun fact, didn't know until a friend pointed it out. Tenzens wife mentioned how all their kids are benders. Well apparently the creators countered the Air Nomad genocide with the unique attribute that the Air Nomads were the only society where everyone could air bend. There is no non benders in their genetic line.)