Fair enough but it's hardly a panacea. I think it likely does work better with something like that where the requirements are truly well understood, though. Most of this "agile" stuff is working around people not being able to tell you what the hell they want.

I was intern at a company that writes medical software and software for medical devices. I tell you: The usual standards are mostly bureaucracy and rather worthless in that they change anything about development practice.

I also had a nice private talk with a person who worked in software development for avionics at some very well-known company. Before I talked to him, I thought that at least there the development practices are better. After that I seriously ask why there are not serious accidents about everyday and how the plane even comes off ground. :-(

TLDR: Dream on... :-(