US-biased headline. This is what US-tech firms have been doing for years, dangling carrots on foreign talent. The same reason why the US VC-lobby has been up in arms on anything and everything work visas related. China is the new USA.
The difference is that US lures people to move and eventually become citizens. China want's people to work there, transfer the technology and go away. It's basically impossible to naturalize as Chinese citizen even if you marry a local and live there for decades. Japanese are strict in immigration but they take ten times more immigrants than China. Only about 1000 people get Chinese passport per year.
i suspect that's a combination of han biased policy (as mentioned in a sibling comment), and the fact that nobody wants a chinese passport. china doesn't allow dual citizenships[1], so for a chinese with "western" citzenship, getting a chinese passport is a downgrade, unless you really sure that you want to stay in china.
[1] https://en.wikipedia.org/wiki/Nationality_law_of_the_People%...