The point is that they're not really comparable. Mint/Ubuntu/etc all ship the same Linux kernel, that's why they're called distros. They're different distributions (distros) of the same software (Linux kernel, etc).
The different BSDs aren't distros, they are different kernels that are developed in parallel. Obviously there's shared history there, and some shared userspace, but FreeBSD and OpenBSD aren't just two different BSD distros of largely the same software.
The different BSDs aren't distros, they are different kernels that are developed in parallel. Obviously there's shared history there, and some shared userspace, but FreeBSD and OpenBSD aren't just two different BSD distros of largely the same software.