If this is compiling to asm.js then every single line of the program is Javascript and it's running entirely in a Javascript interpreter. If it's not Javascript

If this is compiling to asm.js then every single line of the program is Javascript and it's running entirely in a Javascript interpreter. If it's not Javascript, then what is it? I mean, if someone compiles a Markdown document and sticks the result on their website, do you say, "this isn't HTML"? People are free to use words however they want I guess, but I don't understand the perspective where the way a project was written suddenly means that the compiled result isn't Javascript -- it feels like it's taking the word "pure" in a metaphysical direction that I just don't really grok.