Don't focus on the Perl language, just on their best practices for documentation. the guideline in terms of content are totally relevant for any language/developers and polished by practice.
Even if I chose to switch from Perl to python, I still miss Perl in terms of module distribution/testing/documentation.
Perl, and Perl community, I miss you, and I value what you learnt me :)
I advocate for people to be open minded and take good ideas without prejudice on their origins.