there's going to be plenty of disappointed writers

Unfortunately there are going to be plenty of disappointed writers in any case

If anyone still thinks this publisher is interested in selling the books they print to anyone but the Author, they just need look at the art used in their children's book selection. No, this is NOT what a commercial publisher would use!!! Either the Authors have Illustrated the books themselves (and are not Illustrators) or their child has or a friend
I saw 3 out of dozens and dozens of children's books there that I would consider professionally Illustrated and not a surprise, most times the Author WAS already an Illustrator.
No Publisher hoping to sell would use poor quality art on a novel cover, let alone a "PICTURE book" where the art represents at least half of the books value, appeal and marketing potential.