At least the article itself isn't too difficult to get through. From his list, number 3 is the one that jumped out at me:
"Interest in sports can expand or shrink to fill the time you’re willing to give it"
I'm skeptical about the "shrink" part. The main problem I have with sports is how swallowed up some people and society in general can be. There was a recent discussion on HN about books and how impossible it is to be able to read everything that's important within your lifetime. Now, I don't even read books (yet), and I'm certainly not a good role model for spending my time wisely. But I guess there's no problem with people spending time on whatever makes them happy, and if the time people put into sports makes them that happy, so be it. I think it would be better for everybody, however, if we focused more on improving our lives in the long run. Have some more discipline. On the other hand, I think it's great to be "open minded". Give everything and everybody a chance to be worth your attention. It reduces ignorance.