You need to look at what the study concluded. It never said anything about "looking like a bodybuilder," whatever that means. It proved that those who use steroids and didn't train at all gained more muscle than those who trained with weights naturally. Those who trained and used steroids gained the most muscle.
i know about that study and last winter/spring i didn't train but took test for like 4 months and i lost muscle and gained fat
only gained a few pounds of scale weight but bodyfat went from 6% to 13-14%