You've basically ignored the OPs point entirely. Typescript is backwards compatible to JavaScript, ClojureScript most definitely is not.

Not that I'm agreeing with the post in question, but ClojureScript and TypeScript are very different beasts.

not sure what you're trying to say.

There are a lot of good JavaScript alternatives out there. This article sort of misses the point in what's good about alternatives existing - you can use any of them and expect decent interop with javascipt. A library in one is more exclusionary for all the other interests out there.