[qweqwe14]

Because using the web as an "app platform" is a hack. Manipulating HTML with JavaScript to achieve app-like functionality is a hack.

JS, along with other things, was bolted on as an afterthought, because HTML had too much momentum for people to stop and consider a proper way to have sandboxed, portable applications, which is what WASM seems to be, after all this time.

And when there's a quirky platform underneath (HTML + JS), people invent a million opinionated ways to achieve the same thing, because there's no single right way to do it. And each comes with it's own quirks.