This is a great alternative to using the Exporter. It reduces duplication and makes exporting declarative. I personally hate typing the same thing multiple times.
My only concern is this comment from a 2006 bug: 'I'd prefer the next release of P::E::A to track Perl 6's mechanism as closely as possible, so I'm not going to release it until I have a clearer idea what that mechanism will look like'.
It makes perfect sense but it still makes me a bit nervous since I would hate to have troubles getting a fix in for something in production. But as it stands today I haven't found any bugs so maybe its not worth worrying about.