There is too much wrong here to call it a mistake.
Hmm, there's an in-progress rewrite of the TypeScript compiler in Go; is that what you mean?
I don't think that's actually out yet, and more importantly, it doesn't change anything at runtime -- your code still runs in a JS engine (V8, JSC etc).
npm i -D @typescript/native-preview
You can use it today.
You get a gold star.
Yes, you've uncovered grand conspiracy.
It’s funny because a decade ago people said I was crazy for thinking that Oracle owning JS was going to become an issue in the future.