Thread:Translating talk:Page translation feature/Sections

Something I've never understood and I still don't understand: why does this feature require splitting pages depending on their paragraphs? It creates a lot of additional work (many edits) and considerations (markup, internal links, how to split etc.), and I don't see many pages where you're able to "recycle" the translation of a single section. Concrete example: I've not studied how the page was split, but what's the benefit in requiring 104 edits at least to translate Terms of use?