God of War is pretty shallow for an action game but QTEs are at least used somewhat sparingly there and there is some actual design to the puzzles and boss fights. Assuming this thin slice of the game is indicative of the actual combat, there's nothing to it at all.
LOL at gamestop stream. "You listened to the wrong people." Yes, indeed. Unless reworked extensively, I don't understand how KI3 can match up against the best fighters today.