The amount of external rotation performed makes a huge difference to the weight that can be used.
If doing them as in the I,BB video where there is a lot of external rotation, I’d think that no matter how strong one is, being pulled off balance won’t be an issue.
If done the forearms staying about perpendicular to the body, then regardless of the pull being to the face the amount of weight that can be used can be quite substantial.
A while back I was doing them lying down on a bench with a plate on my chest, as I was using more than bodyweight on the stack.
That is not a testimony to my having any great strength, as unfortunately that is not the case, but rather an example that it’s possible, when using a style that has little external rotation, to use more weight than what would be possible in a standing position.
In this case, a technique allowing more weight doesn’t necessary mean a superior technique. Rather it is a differing exercise according to amount of external rotation.