Are we looking at the same thing? I took a screenshot of one of the videos in question and compared it to the blu-ray:
http://screenshotcomparison.com/comparison/189547
It only required a small color adjustment to closely approximate the Blu-ray, and the cropping/warping is identical. The Blu-ray also has more detail, probably because it isn’t compressed for the internet.It’s the Blu-ray with a small paint job.
The question still remains: Why? Why would they go through the effort of getting the colours ever so slightly different from the Blu-Ray? Would it simply come from the rendering process used?