I can really see the idea you went for. And is it indeed pretty close to impossible to do anything similar with a 2d game (at least with this same vibe), so 3d was pretty much the only option to make the idea come true. I think it's one of the approaches that best follows the theme of the game jam.
Even if you didn't have enough time to fully finish the game, you were definitely able to build your idea, and it is an actually amazing idea. Congrats! I hope to see more of your work in future game jams.