Great post, i once made a post about autistics and their ability to draw things and this kind of information was what i was looking for.
It seems believable to me, The same kind of thing might apply to people who have played video games their entire lives.
Its said that gamers also develop a different way of thinking and processing information in a visual way which allows them to make the kind of complex fast decisions games require.
When i had specialized help for my as they used a lot of drawings and visuals to emphasize what we where talking about. This would explain why they use it.