You are being disagreeable. Requirements are requirements, sometimes they are easier, sometimes they are more complex. But you dismissing an engineer who succes

You are being disagreeable. Requirements are requirements, sometimes they are easier, sometimes they are more complex. But you dismissing an engineer who successfully shipped something on production that met their requirements because you think you have "industry advice" is pure arrogance. Every piece of software is written with the actual requirements in mind, defined (usually) by the people who know the context they are working with the best. Not by armchair specialists.