There's a reason Roger called out Sengoku. Man knew the Buddha is goated.
This fruit's ability is not effective for humans, as if one ate it, they will not gain any abilities, but all the weaknesses of a normal Devil Fruit user. Oda once jokingly stated that the human eater would perhaps gain some enlightenment, finding themselves.
Luffy and Sengoku became enlightened + their extra abilities their zoan offers