I don't see the issue here. The guys training is a bit light, but looking at it, I'm just viewing a "regular BBer" rather than a freak of nature. He's lifting weight that a lot of people in the gym, even without supersets, would like to be able to. It's nothing extremely heavy like Ronnie Coleman, but the guy seems to be an average lifter, without going nuts. The supersets do not seem to help when it comes to weight though.
The one thing that does look "wrong" to me, however, is his shoulders. I can't tell if he's shooting something in his side delts or if he has no rear delts at all....or maybe a combination of both.