I like having the option of both video and a written text. Earlier in time we did not have the option of having cheap equipment to record high quality video and to distribute it to our audience in an easy, fast and cheap way. I am 60+ years old that like reading, listening to audiobooks and to learn through YouTube videos. I think we live in the best of times where we do have the option of having many different ways of gathering information. We should not overestimate the value of the written word, compared to audio and video.
You make a good point about the quality now vs even ten years ago for videos. It is much easier for people with a real interest in video, as opposed to me videoing my cats, to produce a good product.
I personally do not like audio books. When I had a long commute for one job my brother suggested playing CDs (remember those?) to learn a new language. I was close. Being an avid birder, I listened to CDs of bird calls to expand my knowledge. But except for specific times, I prefer to read.
That being said, I also read books and articles every day.
For videos I like having chapters to go to as it makes it easier to skip the parts I'm less interested in.