I couldn't, for the life of me, figure out what it was they had printed until you said it was a ship (upside-down of course). The best I could come up with was the flying spaghetti monster.

I guess they're showing delicate things like this because the popular/cheap extruded plastic filament printers of today can't do things like that easily.

In fact, this BBC article goes into more detail about their thinking and plans: http://www.bbc.com/news/technology-27412849