He has returned.
I'd prefer it if it got that later down the line. To reflect how late Sirfetch'd learns it in the games. Also, it just lost Focus Energy for Detect despite having the former for a single ep. I'd like for it to have a consistent moveset please and thank you.
if it got rid of Brutal Swing for it, I wouldn't really care, it could be a sign showing how it's maturing from someone who just likes to brawl (which i personally feel Brutal Swing reflects more than any other move it has right now) to a more refined knight.
Given the nature of that episode he was probably too nervous to pay attention.Remember when Goh met the one-of-a-kind special SunnyD Lycanroc and the newly discovered Melmetal...
And didn't react.
Think about it, he was nervous when he met Kakui, freaked out when Ash's pokemon glomped him so fast, then glomped himself which freaked him more and his pokemon as well, and then was literally begging for Ash to come help him when bombarded by questions from the alola cast at the school, and Kiawe didn't help much, that was a lot to take in a short amount of time.
it would make sense for him to have a reaction here though given his comment in the first episode about how Farfetch'd couldn't evolve, and there aren't as many things to take his focus away either.