I totally agree with the second part. Focus is a major problem of 3D today. As you said, without eye tracking the system chooses where our eyes should focus sometimes giving that 'paper pop-up book' feeling to movies and games.
For real 3D movies we need something like Lytro (https://www.lytro.com/), but for movie recording.
For real 3D movies we need something like Lytro (https://www.lytro.com/), but for movie recording.