Earlier quoted context omitted.
Actually, I think there's a more benign reason and that is references to those kinds of things are just a bit below bar for normally civil programming. If you've ever watched the banal things that people go through to get something past daytime censors, or, get a PG rating for films etc. it's similar. This is not 'Xi's authoritarian' system so much as 'different cultural standards of the moment'. Respect that in some…
I wonder how China protects its censors from wrong ideas (seeing as how they must necessarily come into contact with it). Extra indoctrination? Some kind of surveillance layercake? I read a scifi where digital personality-recordings became popular for various office/industrial applications. Sorta like an AI, but human. They were used for censorship. The remedy for ideological contamination? Full reboot every morning.
Some people just have no sense of humour and a fanatical devotion to a cause, they are useful if not very wise. This is one of those situations where they are useful.