Pfft. The Internet includes enough to identify people as file sharers. That should be enough for most people (i.e. I trust no one but x.x.x.x -- rinse, repeat). Instead, what you're suggesting is harder to do, since most servers don't have user-level identities outside of node addresses or services. If you want to enforce this new level of identity on your megaultrasupernet, then just force all services to require TLS with certs for client and server.
There's nothing new about this new NSF setup, outside of the speed. The airgap method has been around a long time and I doubt there will be much in terms of new network architectures, despite the claims from the blowhards involved.