IMHO, there is a level — measured in snippet code size — below which it does not make sense to encapsulate in a module. At that level, the toolbox should exist in the programmer, not in some external library. Above that level, the snippets are going to be specific enough that they ought to live in the appropriate module.
Your example above is a just one such: Those functions should go in
List::Util. Any other routines you'd be inclined to throw in which would be inappropriate for
List::Util would also be inappropriate alongside these functions in any other module. Just MHO.