3D for a game jam is always a bold choice I feel. But I always think the point of a game jam is to reach the finish line with something you could submit, whether inside or outside the timeline, and clearly you reached that point so I think that's still worth commending.
Most people never finish their ideas. The GMTK game jam stats prove this - 37,000 joined but only ~10,000 submitted (so 1 in 3-4 approximately). Even this jam has that, 200 joined but 40 entries (so approximately 1 in 5).