Documentation and product pages answer different questions. Documentation explains how a system works, while build logs preserve the sequence of decisions, constraints, and revisions that shaped it. Both are valuable, but neither automatically tells a new visitor why the software matters now.
A product page has a narrower responsibility: make the current system legible. It should establish the problem, show what the product enables, and present enough evidence for a reader to understand its value without reconstructing the entire development history.
Engineering journals become difficult flagship pages when every historical turn receives equal weight. The decisions are useful records, but they can obscure the product that emerged from them. Rebuilding AI Thought Lab made this distinction clear: the history belonged in the Build Log, while each case study needed to describe the product as it exists today.
The practical principle is separation without loss. Preserve the engineering history, but give the finished product a clear story of its own.