No, the way to fix it is to create incentives that align for everyone. As with healthcare, the way we do infrastructure work in the US creates incentives that are aligned against some party to the process. In healthcare, it's the patient.
Constraining the supply (or at least deliberately shaping the flows) of some capital, in some cases could — probably even would — help align them, but to suggest that "constrain all of the capital!" is the TL;DR of Marohn's thesis reads more to me like you might have had some biases confirmed than it does a summary.
EDIT: Particularly when your comment seems also to assign a hefty chunk of the blame for the state of infrastructure work to the infrastructure worker.
Constraining the supply (or at least deliberately shaping the flows) of some capital, in some cases could — probably even would — help align them, but to suggest that "constrain all of the capital!" is the TL;DR of Marohn's thesis reads more to me like you might have had some biases confirmed than it does a summary.
EDIT: Particularly when your comment seems also to assign a hefty chunk of the blame for the state of infrastructure work to the infrastructure worker.
Also, phrasing.