That's a healthy response to anything new in the front-end community.
Nevertheless I encourage you to check out this presentation:
Which explains the idea much better than I ever could.
Two things had me sold on this:
1. They managed to make the thing so easy to use, that even people who's line of work involves mostly Excel sheets were able to create something useful after a short introduction.
2. The output is relatively readable JS. There are some surprises like a few one-letter method names, but overall you could open up the source of a running Svelte app(provided it weren't minified) and figure out what it's doing just by reading the code.
I am a bit skeptical that adding more complexity to something that's already much more complex than it should can be a solution.