Okay, I tested this shit myself and yeah, the plagiarism is quite blatant. It's not entirely recreating the artstyle anymore as it's shows that it violates the request policy. (I assume they have already taken the action) but it seems that you can still generate images with "similar" artstyle to Ghibli (Though you gotta tweak around a lot to get the desired result), I wonder how are they going to deal with that. Here's what I was able to create with the "similar" artstyle.
@Robinisback basically people need to learn the difference between artstyle (the traces an author leaves in their works) and image superposition (applied to art). But saying "learn" and "people" together is an antithesis, so things won't change for better.