The agents are the new browser statement is a simplification to succinctly express the UI shift from the passive interface. I do like to think it's a lot like desktop->mobile where it's a shift as much as an expansion.
Also nailed on the points about "legibility". Thanks for the contribution!
I love how it does not lock you into an agent loop. Everything's composable and you use as much or little as you need. Can't wait for the Typescript version!