I can't take this statement seriously. Have you ever even taken an intro cognition or perception class? Almost everything is about how minds typically work, and all of the findings are less than one hundred years old.
The interesting thing isn't how funny it is that the mind screws up sometimes, it's knowing the actual mechanisms of perception, cognition, memory, behavior, etc. Edge cases and failures are only the beginning of understanding, because they hint at how things work.
For example, visual perception is heavily based on detecting edges. So there are a set of optical illusions where you fail to accurately perceive the colors or shades of different areas (like the chessboard illusion), because the relative shading of adjacent areas is more important for producing edges and shapes in your mind.