Reminds me, there was a Stephen King interview from a ~decade ago where he observed that when he passes away his son (Joe Hill) could probably keep publishing under his name for at least a few years since he's perfected imitating King's general style.

I think the distinction, for me, is that when I pay for a book I want access to the author's creative thoughts and personality, not just their particular "brand". I realize that a lot of readers don't care, especially in the YA space, but I'd rather read a worse novel from the person who conceived The Hunger Games than a perfect imitation from someone who's merely imitating the brand.