Gotta spoiler this, so highlight:
Tahno didn't last very long, did he? I'm sort of hoping he'll come back in some way, just to sort of showcase what it's like for a bender of whom has lost their bending. In the original, Ozai seemed almost crippled by it, looking rather lethargic in his cell, and we haven't seen much of the after-effects of Amon's little procedure. Oh, and by the way, how in the world did those referees get away with making those calls?