You know authors have very little - or no - control over the covers of their books. As the author goes through the publication steps - finishing the novel, exploring the revision notes, wading through the copy-editing - in the back of their minds is the question What will it all look like when it's done? And then their editor maybe shows them a concept, and asks, "What do you think?"
That's a polite question; in some ways rhetorical. Unless the author is prepared to really raise some serious concerns, it's just a "Look! isn't this neat?" sort of query.
Sarah Beth Durst probably had to stop herself from screaming, "w0000000000000000000000t!"
Stay tuned for the review, and hopefully maybe a chat with the author later this winter.