Not really, your backend has rich domain logic you can leverage to provide users with as much data as possible, while providing comparable levels of interactivity. Pushing as much logic (i.e., state) while you're developing results in a pale imitation of that domain logic on the front end, leading to a greatly diminished user experience.
> your backend has rich domain logic you can leverage to provide users with as much data as possible ... Pushing as much logic (i.e., state) while you're developing results in a pale imitation of that domain logic on the front end
False. There's very little that you can do on the frontend that you can't do on the backend - you can implement almost all of your logic on the frontend and just use the backend for a very few things.
> leading to a greatly diminished user experience.
False. There's just no evidence for this whatsoever, and as counterevidence some of the best tools I've ever used have been extremely rich frontend-logic-heavy apps.