1. VIE structure doesn't protect shareholders' right.
2. Some companies never pay dividend. They rather hoard cash on balance sheet and seem to believe that's their cash, not shareholders'.
3. Certain company used to publicly state that shareholders' interest is the least important, behind customers and employees. Case in point: When Ali Pay was spun off from Baba, Yahoo as a 40% shareholder was not informed or consulted. CEO simply took a personal 46% share. The excuse was that there was no enough time (but the exuse was contradictory to known facts).
https://qz.com/221635/alibaba-has-a-new-way-of-explaining-its-controversial-alipay-spinoff/
4. Market fear of financial reports non-transparency.
5. Therefore, market's correction mechanism doesn't function well on these companies as it does other companies. Unreasonable pricing on some stocks may persist permanently.
6. Even if a few companies have reasonable stock price, it doesn't negate the above factors, and the aforementioned risk is still pending.