As a human, I can assure you: I, too, have no idea what I am doing.
(also as someone who studied cognitive neuroscience and ML in university)
If anything, LLMs, GANs, and Diffusion Models have shown just how mundane the process of making Art for hire is. And it was already pervasively commoditized.
What counts is the idea, the inspiration. The _prompt_ from which all output ultimately comes.
It's terrifying, humbling even. Good. Mankind deserves to be humbled.