He is a smart kid. He has to position himself as a bargain chip, that`s one reason he picked HK.
You can number the countries in this world who would be powerful enough to withstand US pressure.
Never forget he is only 29 without an escape plan you dont make this kind of journey. If he has to live his remaining life in China/HK he is probably fine with that.
And please step out of your box it does not matter where someone is from. Now everyone is screaming "traitor traitor" and you all forget what he uncovered and brought to main media attention.
But soon he will be forgotten marked as a traitor and everything will move back to square one. And secret courts will grant agencies powers nobody knows about :).