Given a well-defined set of requirements, writing correct code (pre 2026 LLMs) IS a hard task. There is only a small set of the population that, even after several years of training, can write correct code; this scarcity is what made coding one of the highest salaried professions.

However, coding in itself generates no value to a business. A business makes money by solving its users' problems; coding is just one of the means to do so.

This article is directionally correct (although a bit verbose) in adding that the best programmers did not ONLY write correct code, but also expanded their scope to understand how best to solve user problems.