Yeah, i agree. They shouldnt be caved in like that after only one week. They should still look as plump as when they were laid. They still look good though, and should swell a little bit when humidity rises in the egg container.
Could the polystyrene possibly suck moisture from the eggs with them sitting on top?? I've got no idea, just asking.
Actually Slatey, were the eggs removed the same day as she laid them or was she left with them for a week and then removed? If she was left with them for a week then the eggs will shrivel or sink a bit like they have in the pic.