I'm about to teach you something else:
the network 'gave up' trying to fuck with running the show so they got to do w/e they wanted. The result: season 3 is a big improvement. Season 2 was such a flaming pile of shit with that terrible ending that I wasn't sure if I wanted to continue. I'm glad I did, it was worth it. 3 was overall satisfying despite a few stumbles.
Also if you're like me and love airbending, then that doesn't hurt either.