That's an old article, written in the days when people were reading Xi's absence from newspaper front pages as a sign of turmoil. Now: https://twitter.com/QiZHAI/status/1036293006100328448
Also, that professor mentioned, Xu Zhangrun, has apparently been forced to return to China. I don't envy him, but I'm sure he knew what he was getting into. These dissidents seem to have a surprising high ability to accept their fates. Not the same guy, but an interesting read: https://chinachange.org/2018/09/16/four-years-afar/
Nobody knows anything about China. https://foreignpolicy.com/2018/03/21/nobody-knows-anything-a...