China's purpose of having a market (in any sector) and its competition is not to facilitate creation/enriching private capitals, China does encourage private capitals to get in if they are able, but China has no interest in aiding them. Encouragement and tolerance are far from assisting. The bottom line is that China only did the "Socialist Market Economy" and "Primary Stage of Socialism" because State dominated economy of the Advanced Stage of Socialism was too advanced for China many decades ago, and still far from reach. But it is certainly getting closer and closer as state owned enterprises are getting more and more sophisticated and effective. There is no reason to cultivate the private sectors if they can not bring in any better value. But of course, China won't prevent them form trying because it is still a market system.
So, I don't anything strange. On the contrary, I don't think Chinese private space companies are going to play any major roles in the future. What I am seeing is that CASC and CASIC and their commercial outfits going out to the world market (not blocked by US) to compete. This is the real meaning of "commercial" that China (the state) means, not "private".