> Except, of course, that Perl is awesome at regular expressions, an advantage that most languages must have caught up on, no?

If you mean at "parsing text", for which regexes are a tool, I don't think many other languages have caught up with Perl, which had (with Perl 6) gone beyond regexes to grammars.

But, even ignoring that, I think plenty of languages have regex engines less powerful than Perl's, and poorer ergonomics for using regexes in the language independent of regex engine quality so even on regexes as such Perl has an advantage.