Ideally, I agree with you. However, you have to think of those pictures as marketing materials. Why show something when it doesn’t put your listing in the best light? It can also be just laziness. They might think, oh, the room has no upgrade but it’s in livable condition, so why bother showing pictures of it. The pictures are there to pull you, the buyer, into the house and go see it. So, you’d only want to show the best picture of the house.