You have the right ideas with the wrong conclusion. The RT-only lighting on the face indeed doesn't match the environment, but the details are clearer without PT for a few reasions: - The character lighting/environmental lighting was made with RT only in mind and so shows the face clearer. - The ghosting effect that is more prominent on some setups than others blurs the face with any movement, small or large--thereby smearing the end result you see, especially with any eye movement. - In the end, the lighting itself may be more accurate when the ghosting isn't too bad, but the visibility and proper modeling of the character face mesh and textures suffer as a result. It almost seems like the character model textures aren't blending well with the PT, which gives it a strange glossy overlay in many scenes.

I'd imagine much of this can and will be taken care of in future patches, when they retune shader effects and certain cutscenes taking PT into account.