> We have too many single page apps / Jamstack sites, where the default is to send the entire application in Javascript bundles, and do little to no HTML over the wire.
This is a confusing statement. Pre-rendering is a core principle of "Jamstack". To quote the site[1]:
> With Jamstack, the entire front end is prebuilt into highly optimized static pages and assets during a build process.
That seems the complete opposite of what you're saying the default is.