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.
Here you go in order of the list:
http://www.cankaoxiaoxi.com/finance/20161104/1398956.shtml 中国将限制比特币兑美元 防止资金外流 China gonna limit bitcoin to stop capital outflows
http://news.xinhuanet.com/fortune/2016-11/03/c_129348631.htm 比特币交易变相换汇 风险重重 Bitcoin trading bypass China capital control
http://www.gfic.cn/2016/1103/5890032.shtml 单笔换掉500万元，用比特币转移人民币资产 Single trade with bitcoin, 5 millions CNY outflow beyond the borders
They are citing the Bloomberg article as the source. But that article was pulled.
Appears to me that the Chinese are trying to attack the public's confidence in Bitcoin, because they can't stop determined people from using Bitcoin to escape capital controls.
I don't expect any actual crackdown, just this FUD.