The guy is a blowhard of Russian military power and Russian technologies. He is pretty ignorant of Chinese technologies and Chinese military. He sometimes is delusional in thinking Russia is still a superpower on par with the US and China is behind Russia is many ways. He could be good at lashing out at the "combined West," but his tirade can get old.
Martyanov's days as officer were probably during Soviet times, when China's military really was as technologically terrible as he says. Perhaps that is what he remembers.