There is a certain purity and single-mindedness to its design. It might be just, uhum, serendipity ...
but it seems that everything with this bass - stability of top, comfortable size for playing it standing up, long scale, versatile active electronics, feedback resistance - was sacrificed on the altar of achieving a sound as close to a double bass one as possible. It was achieved in an umcompromising way, I kinda like that.
Phil Jones did say that he was really proud of it.