My biggest issue is that SPAs have a lot of overhead for your typical CRUD. The canonical example: a CRUD page with a dropdown of choices based on entitlement.

My biggest issue is that SPAs have a lot of overhead for your typical CRUD. The canonical example: a CRUD page with a dropdown of choices based on entitlement. Server rendered: in your template somewhere, {for choice in limited_choices} and so on. SPA: you need to coordinate a REST endpoint that has options for entitlement of just this dropdown, etc. You now need a route for REST, a route for the SPA page, and view code for both. Don't get me wrong, with unlimited time, build everything as REST services with a client that consumes it. But sometimes server-side rendering is just simpler.