> This is such a bizarre take that I don't know whether it's just a trolling attempt or serious...

I'm being serious.

> Why should web-devs switch to WASM unless they have a specific problem to solve where WASM is the better alternative to JS?

They mostly shouldn't. There are very few problems where wasm is better.

If you want to understand why wasm is not better, see my other posts in this thread.