There is nothing at all being copied but an aesthetic.
Although to me it is interesting that, even without literal copying, a generator might be capable of potentially emulating some key features of a specified source. Can this sometimes arguably extend beyond just “an aesthetic”? We’ve all seen examples similar to this one (from the SD online demo, default setting, with a familiar public-domain source) — https://i.imgur.com/PUJs3RL.png
Since a decade ago, I buy from a popular local indie shop that uses a nearby local lab. No complaints at all.