But configuring webpack is usually just an initial set-up cost. I've never had to go back and rejigger webpack once it's set up. You might have to touch it again if you make major changes to how you serve assets or something, but these one-time costs are part of development.
> Going the hybrid approach is choosing to deal with the problems from both worlds.
This is true of any technology. Every framework, language, library, etc. comes with a cost in setup, design, maintenance, etc. For us, the cost of dealing with problems from both worlds is much, much lower than trying to shoehorn a SSR app with SPA-like functionality. By limiting the size and scope of the SPA, you avoid a lot of the really hairy state management problems that can arise when an SPA is trying to keep track of too much state.
