I'd also like to point out that this sort of usage/distribution is exactly what you'd expect for something like Moose. It's not List::Util or something which is simple, functional, small and easy to drop into almost any regular code. It's a deep, feature rich, highly extensible mini-system for OO. Lingua::Stopwords is a goofy candidate for Moose. Catalyst is an ideal candidate.

And this is why Moose is so nice. It makes building big, complex things straightforward and easy to maneuver.