I'm thrown off by the fact that they went through the effort to mount the door, but didn't bother to do the trim. It'd have a nice Escher-esque look, but without the trim it just looks... kludgey.
its really not. they would have also had to sunk in the door to make the molding the same thickness. its more work, but not that hard with a hollow door. Probably less work than what they would have had to do to the top of the door that actually functions