Take a classic tale or even reality itself. Strip away all the complexities, boiling the source material down to a few tropes and a barely coherent plot. Congratulations! You now have the perfect blueprint for cashing in on the original's success. The characters are flatter than in the original, and the tropes have lost their justification, but surely the fans won't mind. Another word for this concept is a "simulacrum". Quite often, the writers producing the Theme Park Version have entirely misread the original, and are relying on other people's interpretations.