Regionalizing a service is not the same as banning. It's not dependent on "the relevant sense", it's just plain outright wrong. By your measuring stick Netflix and Amazon Video and even YouTube would be banned because they split their service into separate markets, with some content not available somewhere else. At most you could argue censorship, but that's about it.
Heck, region-encoded DVDs weren't a form of ban, don't you agree?
Tiktok is the same exact service with region-specific restrictions, primarily motivated to comply with local jurisdictions. That's it.
Those bans have to do with IP rights. Regionalising of social media is effective censorship, since it's not that there are localized versions, it's that accessing outside versions and people, information and ideas in them is banned. If there was mere regionalising, they would be able to access the non localized version too, if they wished.
Heck, region-encoded DVDs weren't a form of ban, don't you agree?
Tiktok is the same exact service with region-specific restrictions, primarily motivated to comply with local jurisdictions. That's it.