Unfortunately, while this is very interesting, it's not how the site appears in my mobile browser. I'm seeing a series of standard MP4 files (the loading animation is also different, showing a series of vertical bars instead of a percentage), and while I have no problems with playback speed (everything seems properly timed), the videos themselves are positioned incorrectly--there's a line every 3rd or 4th video file where it slightly overlaps[0]
This might be due to my choice of browser/settings (Mull), however, as it's probably preventing use of the canvas without input...