Well, it could be that the storyline didn't resonate with the audience, or there might have been problems with the cast or budget. But I don't have the definite reason.
A powerful political cartoon often has a clear and impactful message. It uses simple yet powerful imagery to convey complex ideas and stir emotions in viewers.
The black and white Rudolph cartoon might have a classic and timeless look. It could focus more on the shape and movement of the characters without the distraction of color.