> Buts it's especially terrible because it was designed by a guy without much language expertise in a handful of weeks.

The core isn't too bad; I'd argue that the main reason why it's hard to work with is because you don't have tight control over your execution environment, mostly since the language wasn't really standardized until pretty late. It also solves a much different problem than most languages since it has to optimize for better UX (not crashing the whole program on exceptions, for example).