Very emotional finale and a solid effort in closing out what felt like a overly drawn out season. I feel like they did Mitsuri dirty though, she didn't get anywhere enough screen time to better appreciate how good a fighter she was.
It's to further highlight the difference between between these supposedly enlightened beings and the criminals. The doshi/tensin look down on humans as being inferior. But they're showing themselves more to be like depraved sociopaths.