In essence, despite the fact that Kirby is good, you have to remember that EVERYONE is good. So when we rank on top-down scale like a tier list, it implies viability at all levels of play, when really they're all so close. The gap between Wolf and Kirby might not be nearly as large as the gap in say Fox vs Kirby in Melee or MK and Kirby in Brawl; but the gap is still significant. It's just that all the other characters deal with each other than Kirby even if he's not bad himself. Plus Sonic exists so Kirby doesn't stand a chance anyway lol