It's hard to get an acceptable VR output for today's rendering engines still. In the examples provided, the movement seems to be slow and somewhat linear, which doesn't translate to head movements in VR. VR needs 2 consistent videos with much higher resolutions and low latency is a must. The feedback would still be very dependent on people's tolerance to all imperfections - some would be amazed, others would puke. That's why VR still isn't in the spotlight after all the years (I personally find it great).