Very 'Imaginative'!
Got his point across I reckon, and made himself feel better.
Now, perhaps one of two things could happen -
1. He patents / copyrights the game and makes it commercially available, thus ridiculing Virgin. And I would imagine he had better be able to 'back up' his perceived allegations to avoid a visit from men in suits....
2. Virgin pick up the idea, modify it to their advantage, and either make it commercially available, or give it away to pax (Children) on their flights....
Make it 'complimentary' advertising.
Or it could just fade away....