Why a store is not a bigger brochure site
A twelve-page business site has twelve decisions to get right. A store generates URLs on its own: every filter combination, every sort order, every out-of-stock variant. A mid-sized catalogue with colour, size and price filters can produce tens of thousands of crawlable URLs from a few hundred real products, and crawl budget gets spent on combinations nobody searches for. That failure mode does not exist on a brochure site, which is why the work is genuinely different rather than just larger.