I don't think you understand the concern. Or at least nothing you've communicated suggests you understand it.
ChatGPT should never produce images like this. Full stop. Prompted or not, it should refuse. Now we know it's possible to walk around the gate and get it to comply. Are there other, genuinely harmful images that it should never produce? Deepfake revenge porn? Images of specific people being brutalized? I'd argue those absolutely can be harmful to someone. Well now there's evidence the "never produce this" wall can be overcome. It's only a matter of time before genuinely harmful imagery is generated.