From the article it sounds like those punishments were for something else, and happened before she uploaded this video.

Chinese-style censorship frequently happens after it's "too late" and thousands of people have watched raw footage the government would prefer to keep secret. But that's not actually too late to remove it from recommendations, prevent related hashtags from trending, ignore relevant search terms and delete reuploads to thoroughly kill virality.

It doesn't look like TikTok did any of that in this case, since the BBC didn't appear to have had any trouble finding the video.