Better/less worse AND more accessible languages killed Perl. And I say that as someone who knows POSIX sh/awk/sed pretty well; which means using them in constant disgust of the ubiquitous UNIX braindamage.
It's not without reasons that the UNIX guys did Plan 9 afterwards, let me tell you.
"Looking like sh/awk/sed" is not the big win Perl evangelists thought it was. Quite the opposite!
People who have actually used sh/awk/sed know quite well how terrible they are.
I remember Perl evangelists bragging about "associative arrays" as if they were God's Gift to Humanity that no other language could touch, only because they knew no other language. Not even realizing how much more limited Perl's associative arrays were because of its complete lack of reasonable reference semantics.