I'm not going to read the actual article, but I expect it isn't anything like your example.
It would be spectacular if you predicted the next 10 NBA champions with 50% accuracy. It would be much less impressive to predict the next 10 NBA champions will be from the Eastern Conference with 50% accuracy.
It would be spectacular if you predicted the next 10 NBA champions with 50% accuracy. It would be much less impressive to predict the next 10 NBA champions will be from the Eastern Conference with 50% accuracy.