Exactly. Why would anyone think otherwise?
I had some guy ask me not long ago why I was so much bigger than him but he was lifting more than me? He was doing seated rows. I said because you are jerking the weight using your biceps, shoulders and whole body and I am using proper form concentrating on just using my back. He walked away.
I thought the video was already posted in post #10. lol
You should have handed him your weight that I'm sure were to heavy for him and after he picked them up just walked away.