Not when the fluff about the armour marks was written. Even now, there's plenty of artwork of heresy-era troops in modern-style terminator armour. Chaos Space Marines, for one thing.
Also, look at the images you posted,
Polaria. The Ultramarine image is basically wearing a mk7 helmet with studs, while the Forge World miniatures have the flaring shape from the "muzzle" of the helmet to those two protrusions either side of the grille. Obviously Terminator armour has the hoze that connects to the front of the helmet in place of the grille, and the helmet around the eyes and top of the head is different, but then, I did say "spinoff of development".
