That's an interesting take on it. On the one hand, it wasn't presented as "this would help my recovery/treatment," rather it was presented as "I threw out my rotator cup so I'm not doing swords, but if you wanted to sell, I can connect you with someone who wants to buy one."
I am acutely aware that one never knows what is going on in the other person's head in a conversation, so I have to accept the possibility that he was hoping to generate another sale to me, but I feel pretty strongly that if that was what he was hoping for he would have mentioned it.