The Truth about Svelte
gist.github.com
gist.github.com
I find it interesting how the pendulum of web development tooling goes from A. native tools > B. abstract everything (currently via JS) > A. native tools (or a simulation of them).
I don't have intimate knowledge of Svelte but I, personally, am a fan of any tooling which keeps things as close to the native browser toolchain as possible.
Looking back in 10 years I think we'll see that we're still deep in the wild west when it comes to web tooling. It's cool that so many folks are interesting in making things better.