I think scrolling is better in the way that it does not aquire audio and user can controll the speed of information. This part is boring and I get it, lets skip to the next part. Video has no way for that.
That's a good point. There is a general expectation that playing a video also means playing audio, and some environments – like offices – aren't great for that.
> ...user can control the speed of information. ... Video has no way for that.
I frequently skim through video by dragging the head in the progress bar, or skip three or four minutes ahead in longer videos. With scrollmation, the default scroll speed is normally much slower than the equivalent video speed of 30fps, it results in jerky movement, and the speed of the video is directly proportional to how hard I am prepared to work to make it go faster. Good UX designers don't make users do shit work.