If you look at the elite PLers like Ed Coan or Kirk Karwoski you will see that they are pretty lean guys. Even the bench specialist (sorry hes not a PLer, her's a specialist. PLers do 3 lifts) Scott Mendelson is sub 15% bf. To add another group, lets add the competing strongmen. They too are pretty lean.
All that said, there are a lot of overweight PLers. I think because the workouts contain very little sustained cardio, but at the same time we need to eat everything that isn't nailed down to keep our mass. This obviously makes it very easy to start carrying a lot of fat.
B-
Yeah I had a good bro who lived on Dr Pepper and Taco bell who totaled ~2300 at 220. His total might actually still be in the top 20. He would run Tren E six months at a time though and he stayed in the 10-12% bf range. Good genetics and drugs do help.