Perhaps it is the compsci glasses talking, but this is just one very specific instance where someone figured out a way to map the DFT problem to a neural net. I

Perhaps it is the compsci glasses talking, but this is just one very specific instance where someone figured out a way to map the DFT problem to a neural net. I agree that it is unfortunate that it is being presented as some kind of big discovery, and that the fundamental lesson is either still undiscovered to the author or just unclearly communicated, but there is still good intention in there (sharing something you've learned and eliciting feedback).