Vince, thank you for checking into it. To help, I did some digging of which you're getting help:
206533 – Intel I219-V in 11-CURRENT and 10-STABLE
This appears to be open, but only superficially as they have CLOSED the underlying job on the Phabricator:
https://reviews.freebsd.org/D3162
Maybe your team will know when it can be had as a standalone package...