Only very few people in comparison watched the full video. Here are the logs for the content server from yesterday 5 PM PST, covering the previous 24 hours (search for /kenburns/promo.mp4): https://pastebin.com/4zTxL2aw
I see your point now. This post originally pointed to the teaser video and not the project website (I do not know who changed that, must have been an admin): http://content.sniklaus.com/kenburns/promo.mp4
That means that there were 175574 HTTP GET requests, but my guess is that if someone fast-forwards that that might trigger another request. So the actual number of views may be a little lower.