In another piece of writing advise I read, the author said not to use physical descriptors in place of names (such as "the redhead") because it reduced the char

In another piece of writing advise I read, the author said not to use physical descriptors in place of names (such as "the redhead") because it reduced the character to a single aspect. Also I can't tell what's wrong with Jackson's passage: I assume it has something to do with Graves/gravely, but I don't know why it's wrong. All in all, writing code seems much easier for me.