[dragonwriter]

> Why WASM and not C#, Java, Node, Python, Rails (I intentionally don't write Ruby) or whatever any of us is using now with its standard runtime?

I don't understand why you use a framework instead of a language there, but it seems to be in the same category of mistake as asking “why <compilation target> and not <thing that can be compiled to that target>”. They aren't mutually exclusive alternatives.