Lol avi. Hmm...
Well, most of Pit's ATs are just for show, but they have times where they are useful. Like arrow looping, lets say you're on pokemon stadium, and the fire part comes up, one of you is on one side of the tree, and the other in the opposite side. That's when you arrow loop. You don't just wanna approach him, infact, Pit should never be approaching anyone. You have arrows that you can loop anywhere, plus 2 reflectors.
Oh, and here's what I do with arrow looping sometimes, when they are falling, I would jump to them and shoot an arrow, start looping it, and do an Uair, if they air dodge through it, I can make my arrow hit them and follow up with a possible sweet spot bair/dair/fair depending on where they are. And if the Uair hits, I try to make the arrow hit them after anyway. Other times I would just shoot arrows up at them to make them air dodge then jump and punish them.