> Believe it or not ...

I believe and agree with most of you wrote ;)

The main problem with HTML/CSS/JS is programmers want more than these languages offer. With WASM you can pick up language(must compile to .wasm) that fits your use case best. This is the freedom most programmers want.

There will always be programmers who will draw their custom buttons(instead of modifying DOM from WASM) and ignore accessibility. They can do this with JS as well, but most of them don't.