APL espouses the mindset that, like human languages, it can be learned, and does away with resemblance to some other (human) language as the case may be for a lot of other languages following the FORTRAN/COBOL/Algol/C lineage. Even within those languages, "readability" is highly subjective. For example, I'm not an APL developer (I mainly use C), and find the "modern" trend of ExtremelyLongIdentifiersNamedLikeThis to be irritatingly "fluffy" and verbose, preferring the "humble" and more concise style exemplified by early UNIX and current BSD, while a lot of others find the latter "unreadable" in preference of the former.

I wonder if people with CJK as their primary (human) language find APL easier to understand than those whose human language is basically within Latin-1.

Coincidentally, the first one is also valid C and a lot of C-like languages too, and I recognised it at once.