> In Vue you can just change a property deep inside the model layer and the view updates

I never used vue for production apps, but my feeling tells me this could be a problem when the app becomes big. If you change a prop deep inside the model layer the chances of triggering an unintentional view update are higher? By using setters, you're essentially creating a more structured and controlled way of updating your application's state. But I have the react googles on, maybe I am missing something :)