This seems to work only with people that will admin and probably promote their works as AI generated, other people will probably argue how the image or text was actually modified enough by the human to grant him the copyright.

Also I don't understand why pressing a button on a camera is so different than writing a prompt and pressing a button, one clearly grants you human authorship the other is disputed.

Also I don't understand why pressing a button on a camera is so different

Take any good digital came, switch it on, and press the button. Do you get a great photograph? No, because you haven't even removed the lens cap. Photography is not about pressing the button, it's about where you point the camera and how you configure it before you push the button.