I'm worried that wide use of WASM is going to reduce the amount of abilities extensions have. Currently a lot of websites are basically source-available by default due to JS.
I felt something was really lost once css classes became randomised garbage on major sites. I used to be able to fix/tune a website layout to my needs but now it's pretty much a one-time effort before the ids all change.
Remember when the trend was "semantic class names" and folk would bikeshed the most meaningful easy to understand naming schemes?
How we have fallen.
By default maybe, but JS obfuscators exist so not really. Many websites have totally incomprehensible JS even without obfuscators due to extensive use of bundlers and compile-to-JS frameworks.
I expect if WASM gets really popular for the frontend we'll start seeing better tooling - decompilers etc.