If you do it in a language that provides static binaries or an equivalent, you don't need to pull dozens of libraries with possibly hundreds of files just to run a single script.

Imagine a situation where you'd need to perform an operation on a hundred servers, would you either transfer one static exacutable or build an virtualenv in every machine and download correct versions all of the related libraries?

If I controlled the environment, I'd probably build a Docker image and deploy that. Otherwise yes, This kind of extreme example isn't very representative of the initial situation though. And you're also talking about switching up languages, which isn't always possible or easy, especially in large teams or codebases.