It like all languages has pros and cons, and picking one thing about perl that isn't even unique to perl isn't a good example of how perl is so well thought out.
I believe you've misread the intent of the title. I read it as an answer to the question: "Why does Perl have arrays and hashes, even though the language I'm used to does not?" And, this article takes a decent stab at explaining why Perl has arrays and hashes. It does not, as far as I can tell, make any attempt to explain why this proves that Perl is superior to all other languages or is more thought-out than other languages (except perhaps those languages that don't have separate array and hash datatypes).
The way I read it, it's saying in a lot more words, "You'll like it once you get used to it."
I believe you've misread the intent of the title. I read it as an answer to the question: "Why does Perl have arrays and hashes, even though the language I'm used to does not?" And, this article takes a decent stab at explaining why Perl has arrays and hashes. It does not, as far as I can tell, make any attempt to explain why this proves that Perl is superior to all other languages or is more thought-out than other languages (except perhaps those languages that don't have separate array and hash datatypes).
The way I read it, it's saying in a lot more words, "You'll like it once you get used to it."