If I were building a CMS or a templating system for a blog then I might care about the structure for scalability and management reasons such as sharding of stor

If I were building a CMS or a templating system for a blog then I might care about the structure for scalability and management reasons such as sharding of storage as part of the URL, programmatic global edits, etc... and that's assuming it might grow really big. Otherwise I don't think it matters that much aside from the potential voodoo wheresmycraisin mentioned.