On the one hand I do agree there is some similarity in the moral issue here as both AI based art and straight up stealing credit raises an issue about theft and copyright that has some clear overlap.
That said I would not say that people who are all in on AI, particularly outside of the scope of art, are in the same boat as credit theifs. There is clearly some gray area open to opinion as to whether it is theft at all, and even if you think it is its undeniably far more a gray area than direct theft and under some forms of reasoning isnt theft at all.