Perl isn't dead. Perl is the only stable actively developed language. Code written in 2003 runs today and perl code written today runs on a perl interpreter from 2003. Because of this perl is by far the best language to do system administration. It is both ubiquitous and stable. Other scripting languages like python constantly have breaking changes and frankly, you have to have a special separate install for every python script you try to run. With perl the system perl is always enough. No containers needed.
You can call it dead. That's fine. Keep it unpopular. Popularity kills. Popularity leads to a language becoming dozens of different incompatible things. Perl is quietly amazing. I write once and run anywhere, anytime. Other languages can only dream of this.