From Seun at Hyperbridge (reported via the forum):
- The Eth rpc sidecar should be unified behind the same rpc endpoint for the substrate rpc endpoint. Having to run a seperate binary means more overhead for rpc providers who will most likely not run the side car
Link to Seun's comment here: https://forum.polkadot.network/t/release-of-smart-contracts-on-polkadot/16848/2