I think what they’re trying to say is that if asking AI to make something in the style of Blade Runner is copyright infringement, that opens the door to asking an artist to make something in the style of Blade Runner being copyright infringement. I don’t know how I personally feel about that, but it’s at least how I interpreted the comment.
I don’t think making art in the style of a copyrighted piece of work is wrong. Like writing a fanfic in an existing world (Harry Potter, LOTR, Blade Runner, etc.) isn’t copyright infringement, it’s covered by fair use. I think Alcon are suing the wrong person. A better case for copyright infringement is the AI company who trained their AI using copyrighted material that they almost certainly did not have permission to use.