One of the most under-reported stories of 2017 - to our great collective shame - was the almost complete destruction of the Islamic State's caliphate
Under-estimating the PLA is a mistake
You can have a report with a fancy name and alleged cache, but to say that Chinese weapons are 20 years behind and not up to the challenge just doesn't appear true.
This is a good read from Kokota (PDF) but I wouldn't under-estimate an adversary that can produce reasonably good weapons...
...in large numbers.