A theme that leans on shortcodes or custom code is hard to change later. When a layout is made of native Divi 5 modules, you can open it in the builder, click anything and edit it the way you edit every other page.
It also keeps things fast and upgrade-safe: there is less custom code to break when Divi updates, and your settings stay where Divi expects them.
That is the standard every BuiltBetter product is built to. Browse the shop to see it in practice.