Comment by yougane

The original runtime was about 60kb in size, that's still unreasonable to add to a library. Imagine a small library like Redux (2kb, including dependencies) having to ship with a runtime that's 60kb (or more). Now imagine a project that depends on multiple libraries of the same size or larger... This is why a language that has no runtime (such as Rust) makes more sense for developing wasm packages that can be used side-by-side with other languages.