Well but the point was, that these are wiped from the internet. Sure it’s convenient, but I wouldn’t put it past the Chinese government - I’m sure they have erased quite a bit of uncomfortable facts.
If it leaks into independent medias, they probably will have a hard time erasing it. If they erase it before it makes it to any independent media, they have a good chance it will never surface again. At least that’s how I imagine it.