Great high level analysis. I love that he mentions the importance of cross country in athlete development. He mentions Geb as an exception but then notes that he ran 6 times at World Cross. Sure, he didn't have great success but cross country was still a part of his development as a runner.
Whether we're talking elite or non-elite, it seems like American and European runners are shunning the cross country course. That's a real shame, those cross country trails are a very valuable part of a runner's development, both physically and mentally.