Moreover, it was made by one of the folks who brought TypeScript support to Svelte (https://github.com/halfnelson/svelte2tsx), so although it may not be explicitly pushed by the core team, it was still made by a significant core contributor.
I'll note that React is the only web renderer that gives official blessing to a native framework, and that's because it's also the only web renderer that built one themselves rather than leaving it to the community.
I'll note that React is the only web renderer that gives official blessing to a native framework, and that's because it's also the only web renderer that built one themselves rather than leaving it to the community.