Just saw this during the morning reading. Without a deep dive, this looks very promising. We have recently been moving to k8s and grpc for our node work and the last piece was how to get to the browser. If this ties it all as one straight protocol from db to browser it will be very welcome and could not have come at a better time. We were evaluating the alternative (GraphQL etc) but our experiences with node and grpc have been excellent so far.
Immediate evaluation planned.