I see you have raised credible legal points which should hold up in almost all courts in the free world. But the antagonists in this are of a culture, which is used to influencing any outcome, by means which may not be considered ethical by the rest of us.
This imbroglio is a very disappointing scenario for all crypto enthusiasts and I want this incident to be concluded with the exposure of people like Mr. Sun. These guys are making money and fame using a tech which has far more potential than just what they are trying to reduce it to. Making money, is only a part of what a block-chain can achieve, given the chance by all involved.
So if a legal route is ever contemplated, it should not only get back the frozen funds, but also highlight issues where regulatory frameworks, suitable to the crypto space, are there.
Otherwise, what is happening is BS and I can't believe that JS is so stupid.