If you consider product as a proxy for customer, I think it gets a bit easier to understand. Customers don’t care about architecture (unless you have a technical product where they do actually need to know architecture). They don’t care about many of the details. They just want their problem solved.

For software engineers, our goal isn’t to necessarily know what makes good product or not - but we do need to make sure that what we’re building solves an actual customer problem or need.