Oh I actually think they
are normal people. And that's why it's interesting and important.
A simple reason why is imagine not having to have a paid online army or coordinate a sophisticated bot attack when your population will do it voluntarily and with enthusiasm.
The more complex reason is more interesting and it really is about the freedom to think and speak but it's also where criticism of China as a state is considered to be an attack on the people and where even telling the truth must be sacrificed for stability. China has the myth that it is stable because it has lost so much blood in the past therefore the stability is more important than human rights or the truth. It's actually why Muslims and Hong Kong are attacked, literally because their existence shows that China is not whole or stable. It's frightening and most Chinese people will rather not rock the boat.
This "attack" on GitHub is actually a defense.