Possibly. But if SoA had that much control over the game, you'd think they would have had the devs spell the title as "Knuckles' Chaotix" in-game. Speaking of localizations, I think Chaotix had one of weirdest ones in the series. The US manual gives a pretty nonsensical plot (even by old localization standards), with Knuckles being the guardian of Carnival Island, references to the whole game being set the day before the park's "grand opening" (despite the campaign actually taking place over the course of multiple days), and no mention of the Chaos Rings. Meanwhile Knuckles' profile actually seems to be written with the Japanese storyline in mind, referencing the Emerald Pillar from this one. I would love to hear how the localization process went.