Complex sentence: The website's reception to the "Kingdom of the Crystal Skull" adaptation was poor, arguing it "reads like a summary of a story, not like a story", and that John Jackson Miller's writing was "lacking".
Split into simpler sentences: The website's reception to the "Kingdom of the Crystal Skull" adaptation was poor. Not only was the story so compressed that it "reads like a summary of a story, not like a story" but John Jackson Miller's writing was considered "lacking".