This is great indeed but IMO only tech nerds can really appreciate it. My son is 10 and he never really needs to deal with real files. Nowadays normal kids just go any given app to access their photos or docs or music or movies or really anything. The notion of copying a file has been replaced by sharing, renaming doesn't really exists when it comes to photos for example and folder structure (when available) is some form of tags and labels depending on the particular app. It's sad. What do you think, are files a thing of the past?
Files will always exist conceptually as a way of expressing data. The notion of sharing exists because of sandboxing and the need to exchange data between apps. This has been extended beyond just apps to sharing between multiple users or endpoints. Actual file naming for some objects has been superseded by meta data and tagging because it provides a better way of describing the thing.
The goal has always been to pull file management away from users. Because they don't need to know or care how the internal data structures work. So yes, in a sense file management is trending towards more of a need to know basis.