The ability to produce HDR video is certainly an impressive achievement in and of itself, but I am personally otherwise less than impressed.
HDR is but one technique to overcome the inability,
on occasion, of a camera to expose all areas of a scene correctly, i.e. a scene in which the range of contrast exceeds the latitude of the camera. An alternative technique, for example, would be to use Graduated Neutral Density filter(s).
Note the italics above. Generally speaking, the exposure latitude of a camera is most likely to be exceeded when shooting in the direction of or near to the sun. Contrast shooting away from the sun will be significantly less and may well fall within the camera's ability to expose correctly. This immediately begs the question: is there a need for HDR video given that some directions being shot do not require HDR processing? Additionally, as technology evolves, the exposure range capable of being captured by cameras increases. Methinks HDR's days are numbered.
In any event, the HDR video linked to in the previous post has, it has to be said, the same issues as many HDR photographs:
1. Halos. For example haloing around the person in the video when he moves his arms. This is a major issue with regard to HDR images and, it seems, video;
2. An unrealistic, almost 'cartoon' look, though this maybe considered acceptable if it was knowingly sought after at the outset.