No, but I can imagine one. If I had the ability to completely understand my own DNA I could probably make some improvements. A NN can't understand itself, but maybe it could understand how it was trained, and come up with improvements to that training.

Imagining something doesn’t mean you can do it; you’ve just chosen not to imagine the ways it wouldn’t work. Also, training this NN was very expensive, so it’s probably not getting an exponential budget to deal with that.