Thanks for sharing the article. I don't think you're not missing a thing. People have differing priorities and will sacrifice anything to achieve those priorities. Their single-mindedness and determination is pretty extreme.
I can't say I'm too surprised. I see quite a few people in my area move to different area high schools for football and basketball. I see lots of kids reclassify from public to private high schools to get an additional year and a shot at an athletic scholarship. In some cases, it is very understandable given that is their best shot at getting into college. Separating from your spouse and moving cross country is a whole new level.
As always, JMO.