His newer works are going to be perceived by more people as being worse than his old works due to increased reliance on special effects and people's perceptions changing over time. When you were younger, everything was better and you will have fond memories of things you saw in the past even after you have moved on. You will then compare the newer work to the older work, and since your life is so bad now that you have grown up, you will draw a comparison. Because things were better when you were younger and your life is worse now, movies must also be worse compared to your standard. It really breaks down to that.