Of course they need permission to process images. No computer system can merely "view" an image without at least creating a copy for temporary use, and the purposes for which that can be done are strictly defined. Doing whatever you want just because you have access to the image is often copyright infringement.
People have the right to learn from images available publicly for personal viewing. AI is not yet people. Your whole argument relies on anthropomorphizing a tool, but it wouldn't even be able to select images to train its model without human intervention, which is done with the intent to replicate the artist's work.
I'm not one to usually bat for copyright but the disregard AI proponents have for artists' rights and their livelihood has gone long past what's acceptable, like the article shows.