I still think Tenzin shouldn't be bested by his own daughter. I never considered her some kind of prodigy in season one but season two and onward made her suddenly important like Korra. Jinora has some top notch skills and then begs to become a Master, which I think is something that Tenzin would have recognized when she was ready. I don't see how she and Kai then connect and care for three years. If I were Tenzin, I would have nipped that shit in the butt ASAP but nooo Kai saved lives so suddenly he's a good guy without questionable motives. I wish Kai turned out to be a bad guy through and through. Jinora though, she kind of stole a lot of glory and responsibility. If anyone should be able to use their spirit to track Korra, it's Tenzein. And to me, Meelo and Ikki have improved but I still don't see how they can stand being around Jinora for very long.

Borra needs to happen, they become better people and then it can happen lol