First it's an easy way to test censorship. Second, you might flip the question: why is the Chinese govt so obsessed that they still block all mention of the event?

I don’t get why the government doesn’t recognize the event and then mold it to its narrative, like so many other governments do.

They basically need to give it the Hollywood treatment.

I’m sure a lot of people don’t know that prior to the event, the protesters lynched and set soldiers on fire.

They do, but prefer to use their own keywords, such as the June 4th incident.