There is no answer to the question "why?"

Our job is clear: to return this guitar to a semblance of normalcy. Tim will build up the edges of this giant hole in order to accept a piece of wood he will carve to match the curvature of the back. It’s unlikely that the customer will desire us to match the color of the fabricated wooden backplate to the color of the guitar but, if he does indeed want it, we can do it. The circuit board will be tucked away in the Museum of Forgotten Parts, located in the Hall of Odd Guitar Ideas.