I think the chart is kind of wild. If I were a GM (or just a data guy for a team), I major imbalance between the top several picks and the rest of the table. I'm sure these are made based on numbers and statistics, but that seems crazy to me. I'd be trading out of the top 5 every chance I got. I think it definitely credence to JS's strategy.
One other note, if doing this "professionally" I'd put in a little kicker for points where even if two draft picks equaled another draft pick in points, I'd value the two picks more than the one. More chances to hit (or miss).