honestly, then y'all are mostly responsible. If you are going to have a younger student do a guest blog post, you should make sure that the project makes sense technically, or at least is not silly. What if the student tried to train a neural net to build a perpetual motion machine and reported their progress on that? Would you have posted it? That project would be about the same level of silliness as what is reported here. I don't blame them at all for doing a silly thing, but I surely blame you for making it your guest blog post.