It is done to test the new system and boost the adoption and use of Chinese Digital Yuan currency. The Chinese digital Yuan is already accepted in a number of retails.
Sources:
https://www.abc.net.au/news/2020-10-10/china-to-issue-10-million-digital-yuan-in-first-public-test/12750320
https://news.bitcoin.com/digital-yuan-giveaway-10-million-central-bank-digital-currency/
https://cointelegraph.com/news/shenzhen-to-hand-out-10-million-digital-yuan-in-currency-giveaway
Although the digital yuan has little in common with cryptocurrency, its introduction into circulation will still contribute to the further development of cryptocurrency.
Its introduction will greatly affect every other currency in the world as predicted that there will be the decline use of USD. This is just introduced right now in their country but the one belt road will redistribute it everywherein the part of the world.
And one day everyone will use China's digital currency and its possible that we may be using the digital yuan to hedge like how we use the USDT today.