I mostly agree with you. I think however that it was "the only choice" because it was good enough. It's worth remembering that there was a non trivial time peri

I mostly agree with you. I think however that it was "the only choice" because it was good enough. It's worth remembering that there was a non trivial time period in which there was a single dominant browser platform which supported alternatives: VBScript was supported through IE10, and is still available in IE11; ActiveX could be used to allow just about any scripting language. Even now it's fairly straightforward to have JavaScript be the output of a toolchain, but not necessarily the input