I don't care if you're a professional tarot reader: no one could have predicted an Uncharted card game.
Out of all of the Sony franchises to choose from, I guess it saw fit to create a card game based around the idea of collecting treasure, and gunning down people in a head-to-head resource management style fashion. It could have ended terribly.
But you know what? As weird as it sounds on paper, it mostly works.