It surprises me Perl isn't dead yet - in fact, German Bundeskriminalamt built a website for people having information about the German nazi hool riots during the France EM 2016 in Perl: https://www.bka-hinweisportal.de/
And, when you get right down to it, a huge chunk of web dev falls into that category.
https://media.ccc.de/v/31c3_-_6243_-_en_-_saal_1_-_201412292...
See http://blogs.perl.org/users/joel_berger/2015/12/response-to-... for one response and some discussion in the comments.
Once you're used to Perl's testing tools, anything else feels chaotic and poorly thought-out.
And upgrading that might risk incompatible system services, which is why sysadmins usually have way fewer problems adding something like Perl or Python. Isolated language environments (cf. perlbrew) are a nice solution to this, at least until you happen upon a particular paranoid admin.