And the answer to the age old question, What's more important graphics or game play, is finally answered.
To be honest, it doesn't sound like the game has too much gameplay either 
To be honest, I think the ingenuity of anybody, especially a young person to create a game that can be played by a blind person demonstrates extraordinary insight. The fact that he is not only a young person, but new at game creation amplifies that even more.
By the standards set by those with sight, sure probably not much in game play, but to create a playable game for those without sight, like it or not, that is a testament to this game's game play elements.