The New Chinese Diaspora

I get the point of the 'new' vs 'old' as in the post-2010 and 80s-90s generation, but it seems a pretty shallow look at trends given the century-old Chinese diaspora since the collapse of the Ching Empire.

I don't really get the point of making the distinction between the globalization and increasing mobility of the current generation and previous generations because that mobility is true of many other regions and countries (i.e. India).