Ethereum's rollup-centric roadmap explicitly tries to push code out of the consensus layer into the smart contract layer, in contrast with other chains that try

Ethereum's rollup-centric roadmap explicitly tries to push code out of the consensus layer into the smart contract layer, in contrast with other chains that try to make the chain's entire feature set monolithic in a single protocol spec. This calldata change is a very small consensus code change in comparison to the bigger picture here. And yes, they have been turning the knobs year after year, but turning knobs is a lot different than adding more and more code.