...[Pythagorean W-L%] has a nearly 1-to-1 ratio with W-L%...I wanted to clarify that statement and present the chart I had previously made, but didn't use in the "Lost Era" article:
Basically this shows us that, over the course of a franchise's lifetime, the Pythagorean W-L% is just about the same as the regular W-L%. However, it's important to note that I used this claim only because I was examining large swaths of seasons, not just single seasons.
In other words, my comment above is not an attempt to denigrate Pythagorean W-L% or any other runs-based wins-adjusting tool. It's merely a truth based in large samples only.