I would be worrying about shareholder protection rather than growth or whether the book is cooked.
Chinese government can do all sort of things "for the good of the country" without regards of shareholder rights.
See how Alipay get moved from Alibaba to Ma's hand.
https://en.wikipedia.org/wiki/Alipay
The 2010 transfer of Alipay's ownership was controversial, with media reports in 2011 that Yahoo! and Softbank (Alibaba Group's controlling shareholders) were not informed of the sale for nominal value. Chinese business publications Century Weekly criticised Ma, who stated that Alibaba Group's board of directors was aware of the transaction.[6] The incident was criticised in foreign and Chinese media as harming foreign trust in making Chinese investments.[7] The ownership dispute was resolved by Alibaba Group, Yahoo!, and Softbank in July 2011.[8]
I am not holding Tencent stock.