It's not just about being annoyed - it's very practical.

If the creator exerted human effort, they'll be able to maintain it. They can take responsibility for it. Even if the value of the 100% AI generated artifact is amazing, and the "creator" of it can't actually maintain it, then what's the point?

It's similar to scenarios I've seen where a brilliant ML person comes into an org, trains a model, that seems to solve an important problem. Invariably when that person leaves the org, the ML model stops being used, the team falls back on older / technically worse methods. But the team can be responsible / own it in a way they couldn't the brilliant one-off work.