That's not really true. With JS glue code (including many libraries already written) Wasm modules can access anything JS can do. E.g. there are Wasm demos showing access to WebGL2, audio generation, camera/microphone, HTTP, storage, gamepads, ...
That's the point. a WASM app has access to the same Web APIs that JS does, for the most part. This was in response to the claim that WASM only gets to work off of a limited api, not an argument as to why WASM is an improvement over JS.
