The same files are also available on Biber project page at SourceForge.
These Biber binaries are standalone FreeBSD binaries, created with PAR::Packer (hence the large size). You do not need any Perl module and not even Perl itself to run them.
These binaries work on all FreeBSD versions >=8.0, including 12-CURRENT. Since biber is a Perl script that relies on many newer-than-ported and not-yet-ported Perl modules, this repository is currently the only place where you can find ready-to-use biber binaries.
TeX Live users might also be interested in the notes on using TeX Live 2017 on FreeBSD.