> To all the people complaining that modern web browsers are too complicated for small teams to build and maintain, do you think WASM helped with that at all?

Kind of yes.

For simple browser as a general application platform you need a simple base technology where much can be shipped as library level. It would be fun to see WASM only browser with JS and CSS layouting solutions run as WASM compiled libraries.

So in theory WASM could be used as a first step to more simple browser but in practise it's propably just a fantasy.