The statement that gives "no tier" doesn't have to mean that it makes the wielders planetary to multiversal. And I'm not saying that as shock value or whatever. I'm saying that the statement itself is left up to interpretation.
Again, it would mean that Super Sonic would have an infinitely harder time with Silver or Knuckles than base Eggman.
That's not a new incarnation though. What's getting lost between us is that Sonic has a set continuity. It's like saying that the SSJG Goku post getting shanked by Beerus' tail is different than before he got shanked, supported by the fact that afterwards, he performed the universal feat. Furthermore, what you said about love. If that were the case, if anyone should have access to the Chaos Emeralds, it should be Amy Rose.
With all due respect, and I really do mean that, and? I spent all my time here lurking into the Kirby Wiki, replaying all the games, watching gameplay footage, etc., and I have only been able to get him to 3-A for a day. Heck, speaking of Kirby, he defeated Magolor and two other beings who scale, two too vague universal feats in Dark Mind and Marx Soul, a universal life wiper, and has an infinite statement by a reality warping space time bending, supercomputer with no reason to lie. And again, he's 4-A. And unlike Sonic, he only has one instance of struggling.