Plus a lot of it was BS. No way that nikka from last season should have been close to has strong as he was. An air bender for like a week and already a full master? The writers need to miss me with that
Dude was already a lifelong student of airbending culture though. That's why he kept mentioning Guru Lahima all the time.
He was basically a huge airbender stan who ended up eventually becoming an airbender, of course he'd naturally be good at it. Dude spent his whole life studying airbending.