just that China should expect the same trend of early growth, reaching a threshold or economic carrying capacity, and then decline

The article explicitly talks of China's phenomenal growth as "a lucky instance", as if it weren't the conscious policy of a highly organized party forcing the vast majority of western industrial capital to move to China and simultaneously controlling it not to become a colony, while taking a billion people out of poverty and creating its own heavily state-controlled firms with its own highly trained professionals and tech transfer in the strongest industrialization event in human history.

The US/EU has papered over their decline with heavy financialization. China will face a similar problem

How do you know? Why is the communist party of China going to let the country fall for that? China and the west are fundamentally different systems and can have fundamentally different outcomes in similar starting conditions. Do we see China de-industrializing in favour of cheaper labour elsewhere? Do we see the Chinese stock market run wild? I just think the article assumes China is just another country like the western ones when in my opinion it clearly isn't.