This guy got pretty beat up by chinese nationalist/wumaos for his comment about "HK being over" Possibly the quote was out of context. Since his views are probably more neutral realist
I have Stephen Roach's book and it was an interesting read since he went on some length dispelling a great deal of myth that persists to this day regarding China's alleged INTELLECTUAL PROPERTY THEFT as commanded by the State. He posited questions and facts that if China were stealing all these techs, then why are their companies being sued or brought to justice in places like the WTO. He made a point that much of the accusations come from companies (mostly western, American etc..) that have fallen favour or market share from their domestic counterparts. Hence, those companies and bitter employees cry wolf to their western mothers a.k.a. government that big bad China are nothing but a land of thieves.
I read his piece on SCMP about HK being over, while I disagree with his learned opinion, his framing is entirely understandable since after all he's an American through and through. But, the overreactions of Hong Kongers, Chinese people are also quite understandable considering the tensions that exist and engulfing much of the relationship between China and the U.S.