Reading the article, they appear to all be new for 2018, which would explain why Remington isn't on that list.
I hear good things about the Bergara, since they've been making barrels for custom builds for so long, they came out swinging with the B-14. The weatherby, savage, and mossberg got a paint job and new stock offering. Lithgow, Franchi and Mauser seem like new imports, from old makers. The CZ 557 is a lot of gun for the $, but it made this list only because it came out in LH for 2018.