A very specific thing mentioned in the patent, namely the cornucopia, is what people remember. The fact that some things mentioned in the patent both never appear and nobody remembers them, really isn't that relevant. It would be a bit like if I had a strong memory of Larry Bird playing for the Lakers in the 1980s. Then, I found evidence of Larry Bird actually playing for the Lakers back then, and your response being, "You didn't find evidence of Michael Jordan playing for the Lakers, did you?"