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China currently sees a huge wave of help - private help from Chinese citizens. The government is so annoyed and hindered by that outpouring of private help that they try to discourage citizens from helping each other and hindering the "official" military help.
Well there is a practical and a philosophical reason behind this: first there is enough chaos already, so you don’t want unorganized citizens to block the damaged roads, but the second reason is, that citizens actually might find out that their power can make a difference and they don’t need a suppressive government to run their lives.