I think that is a possibility. Especially if he and his wife did not develop any signs or symptoms of vaccine injury, such as shingles, clotting, heart issues, etc.
I don't know why some folks were so hard on 'Johnheretohelp'. I thought he was correct when he said some people got placebos. Major medical centers might have the ability and motives to make sure people didn't get the actual vaccine.
I've heard the placebo theory from someone "on the street", too.