My guess is that he was talking about the script to copy the materials. There are two folders in the asset, one basic for Genesis 8 and one specific for Genesis 8.1. The "Dicktator Genitalia" graft is the same for both but the script to copy the materials is different and unique to each Genesis.
And it's quite logical, the surface that is copied is the torso of the figure. But they are not named in the same way for the 2 Genesis version :