I mean, Gokor trained with everyone who wanted to train but he was never under the umbrella of any Brazilian affiliations.
That's sort of a loaded and backhanded claim the way it's worded here.
Gokor had a Judo and Sambo background, Gene brought the Catch in addition to his own rough style of Judo.
To my knowledge Gokor never trained "under" any of the major Brazilian lineage black belts or Brazilian affiliations and he explained once that he was happy to train with them in his gym or neutral gyms but he felt like he was being courted in the earlier days by the Gracie's so that they could say "he's our fighter/competitor". So then in the long run they tried to take credit by claiming their crosstraining had made him good and not his experience coming from the Eastern bloc Judo / Sambo / grappling world that he brought over when he came to California.
Hayastan obviously has very strong Armenian influences, and while people would be training for MMA fights, jiu jitsu tourney, sub grappling tourneys, or Judo tourneys the fundamental style would be more accurately described more as Armenian jiu Jitsu and not Brazilian.
They were also very much ahead of the leglock game due to teaching it decades ago but that's a different discussion.