Whether they be fiction books, or TTRPG supplements. You should be particularly disinclined to do that if they are not forthright about using AI prompts. Those people know perfectly well what they are doing.
No names because I don’t have confirmation. But if my suspicions are correct, then I am profoundly disappointed in the company in question. And it will certainly be a consideration when it comes to my future purchases.
Eh. I agree on the second part.
Using MidJourney and the like to generate a base image that the artist refines is a great savings in time (for them) and money (for you).
But if they’re not upfront about what they’re doing, that’s fraud.
MidJourney and the like are not up to creating covers on their own.
But they can iterate a lot of compositions very quickly, and produce backgrounds that need a bit of polish, but are close to usable.