Almost all social welfare has been devolved to the state level, but state level spend and incentives are overwhelmingly spent on large capex projects that align with larger initiatives (eg. the EV price wars with dozens of SoEs jumping into the fray despite the overwhelming majority of the Chinese EV industry being won over by private sector BYD).
That's tens of billions of dollars of capex per province just on one initiative that has turned into a price war that is forcing central level intervention. It's the same misaligned incentive structures that lead to the construction boom and bust in during the 2015-20 period, the overzealous Zero COVID enforcement, and the subsequently haphazard end to Zero COVID.
Most provinces are heavily indebted and lack a robust enough capital market to raise from in the way you can get local and state bonds in the US, or municipal bonds in much of the EU.
The Xi admin's policies is the equivalent of America having Reaganism during the 1950s-80s. Reaganism was bad for the US, but at least the US had a higher human capital by the 1980s thanks to New Deal (1930s-1950s) and Great Deal (1960s-70s) policies for a generation.
The kinds of people who had sympathy for solving spatial inequality in China are no longer represented after Li's passing, and this kind of petulant opposition to welfare expansion with no data to show otherwise is what will trip up China longterm if something does not change in the next 3-5 years.
The kinds of policies being pushed by the Xi admin currently are similar to those from a decade ago, yet China is a much older society than it was 10 years ago, and as I pointed out elsewhere, a society where the median household is much poorer than it's peers at GDP per capita (and even significantly below in the case of Thailand).
This is the same point the Economist article is getting at - a country where 10-20 million people are earning European and American level salaries but with almost half a billion people with Indian or Vietnamese levels of household incomes is an underperforming society if spending cannot be unlocked because the bottom half of society is saving heavily for a rainy day due to a limited to nonexistent social safety net.
And now that most of China is at Thailand level ages, there just isn't much room for convergent development using an export model.
If a social safety net expansion comparable to the Great Deal isn't initiated by 2029-30, I truly cannot see how a 4-5% GDP growth rate can be sustained over a long enough time period to converge with a Japan, Korea, or Western Europe, let alone the US.