What do you expect out of a journalist regurgitating Michael Pettis? Go to the actual source, rather than the person repeating the arguments without much critical thinking. Pettis's Keynesian reasoning has been brought up countless times here, and it's already clear what the limits of his analyses are - ie, data distortion, obsession with investment / consumption gap, US bias/intentional agenda pushing, and so on.
The reality is that the success of China's state led system has proven to be impossible to explain via capitalist orthodoxy, so they turned to blaming it on China (and other trade surplus countries) stealing from the rest of the world and mis-allocating investment. What they persistently fail to bring up is that "capital efficiency" is not the final question in economics - productivity is, and the difference between "useful" productivity and "useless" productivity is not solely determined by the market.
That is to say, consumers are not the objective judge of value, and to the degree that there is an objective judge of value, it is future productivity, measured not in dollar terms but in the mathematical improvement of productive capacity. This is especially true in a world where productivity is dominated by AI and robots. as AI and robots do not consume, yet such a world is bound to have
more productivity, not less.
China's historical strategy has been to maximize future productivity, and not just consumer value. This isn't to say that China doesn't care about consumers, but to say that Chinese planners believe they know better than the average person on what will strengthen China's competitiveness, and in that, they are most probably correct.
The investment in green energy is a perfect example of this. That was a strategic investment by China, not a consumer-driven effect. Left to their own devices, consumers would hardly adopt EVs as long as gas was economical, yet strategists know we are at peak oil and that reliance on foreign oil makes China vulnerable to price shocks and political black mail. They also know that, the country that is able to crack green energy first, will get a tremendous advantage in technology & infrastructure over those who are stuck in their ways. Pushing through natural inertia via strategic intervention has always been China's super weapon, and as long as the planners in charge are well educated, smart, and talented, their decisions will on average be consistently better than the consumer's.