Despite the higher poly models it's noticeably unnatural to me. I'm not sure what it is but it was easy to tell it was a render, maybe the speed of the movements, seems like there's is an unnatural slowness, though that's probably just the actor exaggerating. That and probably the texture mapping, could be the lighting too.
LA Noire's face capture, using low poly models (from their demo) had a more natural animation, probably because they were seemingly using a more advanced, or at least newer technology, one that is marker-less, unlike the one shown here.
I'm not sure where you got the info that it's the same tech from LA Noire. The LA Noire demo showed some sort of volumetric capture using an array of capture cameras while this one clearly displayed the use of MoCap markers on the faces.
Perhaps the (model) rendering is more advance but the animation from the LA noire demos simply looked better. On that note, the LA Noire demos suffered from using what looked to be very plain models, seemingly the same as the final models for the game, so likely very low poly, especially since they were for a console game.