Surely an article can cover a process end-to-end, just as a video can focus on only a critical part. Do you mean that the medium of video encourages the author to be more thorough?
That's fair. Someone commented in a different fork that videos are good for DIY jobs, and I totally agree. You want to see a person doing it live, so you can imitate their motions. I was thinking about learning something theoretical, like mathematics or history.