The GP comment has the hallmarks of Chinese gov't propaganda, which reaches even here. You'll see it every time criticism of China appears: 'The U.S. does it too.' Sometimes the application of it is just laughable:
> Americans movies will certainly never paint America as the bad guy
Wow.
> There is a lot of bad blood coming out of American media about China
The paranoid, we're-picked-on perspective.
Much of the comment is directly from the rhetoric of the Chinese Communist Party and government:
> Anyways, movies are political statements. When you make it too real, then it hits too close to home. And there are certain dangers with that kind of propaganda. And it will certainly upset the people on the receiving end of it.
Everything is political. Avoid politics that challenge the Chinese Communist Party for reasons of public order, which just upsets people - the public doesn't want to think about politics and become upset. Promoting Chinese Communist Party-approved politics is ok, because that increases public order.
> Stick to making movies about aliens and their probing devices, zombies, and superheros in tights. Or killing the evil German Nazis. Nobody will question these kinds of movies.
Uh, I'll try to keep that in mind. We wouldn't want to make a movie that anyone questioned!