Stability AI knew they would be sued to the ground if they trained their AI generating music equivalent called 'Dance Diffusion' model on thousands of musicians without their permission and used public domain music instead.
So of course they think it is fine to do it to artists copyrighted images without their permission or attribution, as many AI grifters continue to drive everything digital to zero. That also includes Copilot being trained on AGPL code.
Copyright (in the US) was NOT in fact created to protect creators, it was to encourage creation and advance science. Today copyright is being used to curb and monopolize creation and prevent advancement (case in point this very story)