1. KMP isn't ready (iOS is slow, web build is abysmal, desktop is ugly as fuck).

2. They might become just another RN or Flutter. They are trying to avoid it, but this is not easy.

3. They are an Android-based framework being applied to iOS and Desktop. And it carries most of the Android style of doing things to the other OSs.

But if Google keeps throwing money at them, they do have a better chance of working.

I will make Quartz (our lib that Amethyst uses) a KMP ready. But I don't expect a lot of production KMP apps anytime soon.