For me personally, I retain much less information from video vs reading it.
For text, I change my reading speed based on comprehension, going faster for things I know, and slower or rereading for things that are new or complicated. For video, you're expected to consume the info at the rate provided in the video, losing attention when they spend too long on info you're already finished with, and then blowing by other info that I want to spend more time considering.
There are options like adjusting video playback speed and rewinding, but that's not how video is typically consumed and is much less convenient than just altering your reading speed.