Yes, you made a faulty assumption without evidence. This is how AI witch hunting happens, and it causes real harm to artists and writers when people accuse them of using AI without evidence or merit, just based on feelings and vibes.

Even though more sophisticated generation with manual editing is possible and probably a thing, I don’t think you’ll see AI keeping something completely unchanged for multiple panels. Aside from looking less AI it makes no difference for AI since it can easily "redraw". If you pay attention to Umbreon, you’ll notice she barely changes. From second to third panel only the mouth changes. All panels are completely the same below the head