Above all is about Chines market growing. Total number are up. That's logical. When it was in its early years, the few companies with the determination to run the shop there had labour costs as the last concern (completely contrary to the popular belief.) Now, when it is up for normal people to run businesses, most of them have far more common sense and caution with hiring expensive cadres.
As opposed to...? Most countries make life hard for immigrant (especially unskilled) workers?
you obviously did not read the article. It clearly explains the answer to your question.