A case for ClojureScript 2.0

> Yet the dev code behaves exactly how it will in production

> It’s guaranteed to work, even though the storage format (jar) is different.

Just because the author's experience is in line with those statements, doesn't mean it's true. I have stumbled upon enough issues with AOT when using some particular libraries that I try to avoid it at all cost and run my apps from source. Apart from that, your code has to be written in a way that's compatible with jars.