No, the original claim of Wasm definitely isn't only one side point about development. The original claim of Wasm is that all of these features are packaged in a well thought out whole + the success of this platform (thanks to browsers mostly) is what's so interesting about it.

No, not original Claim about WASM but your original Claim that about hot reloading and WASM.

"Hot reloading is a good example."

Again. You don't need WASM for hot reloading.

"A good example". That really doesn't mean it's "the only" example.

BTW not my words.