I'm not under the impression that e.g. pressure vessel design or bridge building follows the same safety rules now as it did 40 or 80 years ago. You might learn the same basics in university, but in practice the rules and tools are also evolving all the time.

So the "robust, time-tested tools to solve problems" also become obsolete in other fields of engineering. I think this is not unlike "compiler warns about more unsafe practices nowadays".