having antagonists who are introduced with clear grievances and motivations - this feels pretty vague to me. But for my money, the motivations of most of the antagonists in every Macross show is pretty clear. And as for clear grievances, Dynamite 7 and Kamujin from the original show post Earth getting obliterated feel like they have pretty clear grievances to me, as does Gamlin when he operates as an antagonist for half of M7.