I didn't see anything about the company selling unfinished bodies and the idea only seems interesting if you have a strong need for rattles or a somewhat restrictive shifting ballast system for casting distance. Would a compressed balsa body infused with a binder be more buoyant or as strong as a plastic body? If they were for sale, could you cut a slot and install a lip securely? From the pic, it will apparently not include interior chambering, which is an important feature in plastic bodies. There's lots TBD.
I can't see how they made the thing! At first glance to me it looks like maybe they used balsa sheet or sheets and squeezed sheets to fit into a mold? The inside of the bottom of the bait looks like it was burned when squeezed into a curved shape or structure while the side of the bait did not show any burning effect like it wasn't squeezed or compressed too much.
I still can't see the overall advantage of compressing balsa with a binder additive into a mold instead of compressing a specific purpose plastic into a mold.
But my experience with compressed wood is hickory pellets that are burned with my Traeger wood pellet barbeque grill. YUM!