Uncanny valley, if anything: reflections are supposed to change with a changing viewing angle and/or surface angle, whereas just camera movement has no immediate effect.
The whole "uncanny valley" idea is something that is related to virtual humans, not environments. But yes, agreed, dynamic lighting would make it more believable of course.
It does approach U.V somehow. The more realistic things get, the more I feel it misses something, like touch or smell, making it annoying instead of inspiring.
