Take a look at how China has treated google and facebook. They have sought to create the social network, the search network of their country. They create domestic e-commerce sites. Bitcoin and other cryptocurrencies are the technologies they have learned and the next step is that they seek to kill bitcoin and other cryptocurrencies to build their crypto. China has more than 1 billion people and they are aware that the market from their country is potential.
In terms of human resources, they have enough programmers to create their own blockchain.
They already planned to create their own centralised crypto. After announcing having interest in blockchain, they are now implementing again an strict implementation it just shows that they just want to adopt is blockchain system not the cryptocurrency at all. China can create their own due to their profit in economy and population.