That reads as good advice but it's from 2013 and security info that isn't extremely current should taken with a grain of salt, as it were.

Note from Digest::Bcrypt’s POD: While maintenance for Digest::Bcrypt will continue, there's no reason to use Digest::Bcrypt when Crypt::Eksblowfish::Bcrypt already exists. We suggest that you use Crypt::Eksblowfish::Bcrypt instead.