Another point: a lot of developers have their favourite languages that happen to be not JS. The so called "open web" proposes segregation via transpilation ins

Another point: a lot of developers have their favourite languages that happen to be not JS. The so called "open web" proposes segregation via transpilation instead of enabling (some sort of) multilingual techniques and no major tech corporation is rushing to heavily invest into asm.js/Emscripten. Let's just hope the whole thing goes down heavily and the future will hold a complete freedom of language choice both on mobile and web.