The biggest take away is that it is better to be direct than indirect. When you have only one component to modify, it is clear that the new code goes into that

The biggest take away is that it is better to be direct than indirect. When you have only one component to modify, it is clear that the new code goes into that component. When you have multiple layers of components, it takes a lot more analysis to figure out which one is actually responsible. This is especially in the case where there are wrappers upon wrappers. It is a current programming style that I hope goes out of fashion quickly.