> DOM performance is a big deal and bottleneck for a lot of applications

What are examples of such applications? Honest question - I'm curious to learn more about issues such applications have in production.

> But we really shouldn't be requiring everyone to become an expert to benefit from wasm.

If the toolchain does it for them, they don't need to be experts, no more than people need to be DWARF experts to debug native applications.

I agree tools could be a lot better here! But as I think you know, my position is that we can move faster and get better results on the tools side.