The game really grabbed me until the giant robot stuff.
It just seems like a very forced concept story wise and really is an odd and somewhat silly contrast to focus around giant dinosaur robots in the face of the serious "return to the land" Native American themed beginning and clear message of human sustainability.
For how grounded the game is trying to be with its tone, world building, themes and humanizing of the antagonists its a bit odd direction to go. Like, giant robot dinosaurs seems like a better fit for a more light hearted/less serious game. That or you need to make the game to have much more "wink, nod, tongue in cheek" stuff.