I have not been able to get excited about WASM due to the poor memory management situation. It’s been years since the MVP and we are still in limbo about freeing memory.

A great issue documenting a lot of the pain points around this is here: https://github.com/WebAssembly/design/issues/1397

Until this is solved WASM is dead in the water for a huge variety of applications. I am rooting for WASM, but it has been discouraging to watch this go unsolved over the years.