"death of the artist" only makes sense in-so-far as you want to look at a text how it exists rather than the artist's own interpretation. It's more a thing with books, "death of the author", cause the author might say it means one thing but you can look at the text and question what it's actually saying, infer new meaning etc. Cause artists'/authors' intent may not actually have come through in the text. Like "You intended this but this is what it comes across in the book as".
But I think for the most part, there's no need to dismiss the artist/authorship completely cause it gets away where this thing has come from in the first place.