According to the news which was published online today by major news papers.
The China Central Bank said all crypto transactions are illegal and will work with every way possible to put an end to it. Link to news: https://www.bloomberg.com/news/articles/2021-09-24/china-deems-all-crypto-related-transactions-illegal-in-crackdown?srnd=cryptocurrencies
Since the announcement today major crypto currency has been dropping with speed in price.

My question here is, is it that the Chinese government has the power to shake the market just with a mare statement

And is it that people don't have faith in crypto knowing that the Chinese government don't have the power to do so?