The strange thing about this is: "restricting domestic bitcoin exchanges from moving the cryptocurrency to platforms outside the nation" - how come this can be done? Bitcoin addresses don't exist in or outside of China. I do believe that sooner or later the Chinese government will do something about bitcoin - but this ignorance about how bitcoin works shows that this warning is not really from any serious source.
And by they way - please link to those Chinese media reports that you mention - because you care to link to material about their reputation but not really to themselves this is kind of strange.