Well securities in the first place are assets too so I really don't think they dig deeper into that since the argument of the defendants are about Bitcoin being an asset or not.
The point I wanted to make is about whether Bitcoin is legal in China or not? I wanted to make it clear that legal means that it is acceptable as "legal tender
[1]*" just like all other securities such as the dollar, EUR, and others, and so far Bitcoin is illegal in China.
The court’s decision is to classify Bitcoin as an asset and therefore it is protected by law (since Chinese law protects those assets) and the asset according to the legal definition is anything that has value and is not required to be legal tenders.
There is a big difference between defining digital currencies as Digital Asset and legal tender.
*China does not recognize cryptocurrencies as legal tender and the banking system is not accepting cryptocurrencies or providing relevant services. The government has taken a series of regulatory measures to crack down on activities related to cryptocurrencies for purposes of investor protection and financial risk prevention. Those measures include announcing that initial coin offerings are illegal, restricting the primary business of cryptocurrency trading platforms, and discouraging Bitcoin mining. In the meantime, China’s central bank is reportedly considering issuing its own digital currency.
[1]
https://www.loc.gov/law/help/cryptocurrency/china.php