People tend to opine on systems engineering as if we had some sort of information superconductor connecting all minds involved.

Systems are Hard and complex systems are Harder. Thinking of entire class of failures as 'solved' is kinda like talking about curing cancer. There isn't one thing called cancer, there's hundreds.

There's no way to solve complex systems problems for good. Reality, technologies, tooling, people, language, everything changes all the time. And complex systems failure modes that happen today will happen forever.