I think the idea is that it (or some future incarnation of it) eventually replaces most static web hosting, FTP, Bittorrent, and quite a bit of dynamic web hosting. Oh, and maybe messaging stuff like IRC.
Sounds like a big piece to chew, but I think the main hurdle is replacing HTTP(S) on the client side.
Location independent stable identifiers for immutable docker images that allow you to cache them wherever you want (including in airgapped envs) and still don't require users to patch your image names with kustomize/helm/whatever