*grin* I'll assume you meant "Angeal" and not "Genesis," especially since I don't want to contemplate what would happen if Genesis ever met Gong-gil.
And yeah, no one is really getting Gong-gil--everything is purely based on appearances and how they individually read things. None of them know anything about him, other than what they think when they see him. It was kind of like that in the movie, too.
Gotta admit, though, Angeal's way of treating him is a lot better than most people's, even if it is a bit patronizing. Angeal's by nature an overprotective mama chocobo, after all.