... and this probably works.
I recognize this type of censorship to be very similar to the censorship Germany had during the Nazi period.
J. Goebbels used these methods ("which - from a technical standpoint - you could probably call ,brilliant"
- Sebastian Haffner) to get all Germans to accept the regime and its doing as good or at least as not too objectionable. Only small changes, such as pushing back an outrageous story to the back pages, or painting a slightly different picture of an event, work because they're not easily recognizable as censorship.
However, I fully believe the Chinese are way more aware of what happens than the Germans were.