One thing I like about TypeScript is that there's tooling for "quickly strip out the types and give me something I can run; I don't care if it's correct". You can run the (slower) type checker concurrently with that (or whenever it's convenient to do so), but type-checking doesn't necessarily block you from being able to play with runtime stuff.

I understand that this workflow can't be realized in languages whose runtime semantics are derived from type-level stuff, and while that can be quite convenient I'm personally willing to give it up to unlock the aforementioned workflow.