What about two way bindings would make a difference? In most libraries it's already very easy to update the DOM based on the model and also update the same mode

What about two way bindings would make a difference? In most libraries it's already very easy to update the DOM based on the model and also update the same model in response to the same DOM value changing. Maybe not in one line but still easy. Talking about things like input.value etc. I don't really see how making that particular pattern more convenient would be a radical game changer.