I'm convinced that every SV founder or neolib politician who writes these hit/think-pieces is getting their enemy entirely mixed up. China is massively bureaucratic and regulation heavy, and just by the scale of these projects, it's simply impossible to think that if you just loosen some rules and fly by your seat pants, you can build a 11 platform train station in 3 years. Again, this station is mind bogglingly massive.
The real answer is that China's regulatory loop is extremely short and small, where the government works very closely and reacts very quickly. You can talk to your regulator, even if you're a small startup working on a small hardware problem. Because every single community district has a CPC office, with representatives that can escalate things all the way up to the top. There's a clear chain of command, and throw in some guanxi to keep the gears greased up, things (problems, questions, hurdles) get to where they need to go. In the US, politicians don't work for their constituents, and even in the rare cases where they do (or have good intentions), they are up against other politicians who have ulterior agendas and their own goals. The machine thrashes against itself, not in a single direction. This is exactly the image of "democracy" in the the minds of the Chinese general public.
The problems described in OPs post are exactly the kind of thing China is good at tackling because their democratic system is actually built for this.