Oh he is.
One of those people who is obviously talented, but then assumes this means he's better than everyone else and will berate and belittle anyone that disagrees with him.
Maybe he's gotten better over the years.
I always forget this, it's so weird for a Smash Bros character.
Kinda like trying to learn that Bayonetta's best way of recovery is to do Up Special first, then double jump, and Up Special again, followed by a Side Special.