This is more about how what you can remember about an event after five seconds differs from all that you experienced, as opposed to what you can remember a year

This is more about how what you can remember about an event after five seconds differs from all that you experienced, as opposed to what you can remember a year later. I think most people can give a word for word summary of an utterance after a few seconds so this particular experiment doesn't really have any bearing on your relatives claims, which are more about recall from long term memory rather than working memory.