It is an interesting graphic, I have seen things like that for other foods and beverages before. They are nice because they can help narrow things down, but for the most the inner most ring or two are often better for descriptors than the outside ones.
For instance how many of us agree with, or can even completely describe accurately the difference between just grass and freshly cut grass? Though when you just view them as a grassy flavor profile, it is far more clear in the persons mind what is being conveyed. I know this goes without saying but this post is completely "in my humble opinion."