I read it the first time. You seemed to say (and therefore like it or not did say) it was about 3D arrays, but the author didn't go far enough in his explanation.
From what I read of Jeff's comment it was the other way around, that the article didnt go far enough and should have included 3D arrays to further explain the process.
And is there a full moon about somewhere, there seems to be so many agressive comments about this post...