What, after all, is a bit of light fraud, if it saves an estate agent some time?

I'm not sure if you're being serious but it should be illegal because they're producing images that are often not physically possible. At least if an agent stages an apartment with real furniture they are doing something a tenant really could do. But these AI images tend to change the physical dimensions of a room, use images of furniture that don't make sense dimensionally, shift the "natural" light of the room in a way that the sun will never provide and sometimes even change the view through the windows of the room.