> This writing style is useful for beginners.
The most useful writing, for both beginner and expert audiences, puts the most important content first, with supporting details later. Dispersing the lede late in the article serves the author/advertisers, not the audience, and is independent of whether the content contains context for beginners or a narrative style.
Half a million seems like a good guess for how much the company would have lost paying developers and architects to re-design and re-implement the system, buy new hardware, new licenses for their third party software and the revenue they would miss out on by doing all that unnecessary work instead of building a profitable new feature.