Just speculating here, but they still have a Back-to-my-Mac-like feature: The HomePod allows for remote access to things in your home WiFi, e.g. IoT devices.
As IP addresses of home routers change often enough, this might be a use case for DNS push. Access has to work across work across carrier-grade NAT though, so they might still need more than DNS.
As IP addresses of home routers change often enough, this might be a use case for DNS push. Access has to work across work across carrier-grade NAT though, so they might still need more than DNS.