> The entire frontend was only ~75KB, and ~32KB after gzip!
i think this is the pull quote. the whole app (https://sveltekit-todo.ameo.dev/) with complete with drag and drop and crud, comes in at 59-75% the size of the base runtime of React (7k, 3k gzip) + React-Dom (121k, 39.4k gzip).
and js bundle size isnt everything - Svelte wins on other developer experience factors as well, and is just missing ecosystem as OP noted.
One thing to be very mindful of is that is a very limited application. The footprint of the various frameworks changes based on how big your application gets as shown here[1]. Swyx, I think you are probably aware of Ryan's article but it's worth contextualising for others who might not be familiar. The more components you have the more Svelte loses its edge.
[1]https://dev.to/this-is-learning/javascript-framework-todomvc...
https://twitter.com/sveltesociety/status/1301168598988107776...
https://svelte-scaling.acmion.com/
https://github.com/halfnelson/svelte-it-will-scale
sveltekit has further opportunities for whole-app optimization but honestly given this research i lost interest bc its more than good enough