That's insane. Good programmers need not know stupid tiny nits about Javascript (heck, I've worked on a Javascript JIT and I don't really know Javascript). That does not mean that they are not skilled.
> aesthetic
I don't understand how "you must carefully understand how the language parses to understand this line of code" is aesthetically pleasing when compared to unambiguity.
> minimalism
Here, it is needed, at least arguably (by douglascrawford). You could argue that the "optional semicolons" rule is ugly and not minimalistic, and thus the minimalistic approach would be to not use that rule.