I agree with the authors intent, but it does seem like hes complaining about playing a sequel to a game, something like going from Halo 2 to Halo 3, because thats exactly what has happened.
Its not like the Ironclad, or Master Chief, got any different over the change of games. The enemies are similar, the challenges are identical, the characters are slightly different, but I picked up StS2, not Monster Train.