exactly and a few of those guys were tall like Phister and Mark Felix.
a while ago when i was at a more "real PL" gym, they had an exercise that taught you to lean back into the pull. they'd put two bars down parallel to each other up against the wall, and a plate on each one on the other end. you'd stand between the bars and basically do a somewhat goofy two-bar deadlift. i'm probably describing it poorly, but think of it like a mix between a deadlift and a t-bar row.
anyway, when the bar's stationary and on an arc like that, it's also a little easier since you can lean back into it like crazy. you can really load the weight on.
i remember one year one of the younger guys in the WSM was doing the barrel deadlift and the weight was near 750, and halfway up he actually rested the weight on his thighs while he flipped his one hand from under to over grip. now it was obviously incredibly heavy, but 750 pounds sitting dead weight on his leg about two inches above the knee? i'm not sure about that.