We need a vision of Perl’s future. Many of the things we need in the Perl core are things we’ve re-implemented many times on the CPAN. Not having them in core means developers have to learn their current environment’s way of handling this, and makes it easier to choose a module that might be inappropriate, or worse, unmaintained. This increases the cognitive burden on all developers who, I’m sure, are more interested in building solutions than arguing over them.
Source: The Future of Perl, an article by Curtis “Ovid” Poe.