The demonstrator is not Dom at all, it's some bloke Lionstracs always use even back when they were throwing out the first lot of cheesy organ riffs a few years ago. I think his name is something like Bernard? He is possibly German/Austrian.
Dom may be the bloke stood at the side with the sort of curtain cut hairstyle. I can't remember what he looked liked from the picture he sent me last September as it didn't take me long to forget him hehe