After saying all of that, I really do learn a lot from the videos. Sometimes a better way to use my tools. Sometimes a tool I didn't know I needed. How to reach the damned connector for an automotive sensor that is buried between the firewall and the engine. And many similar things.
"Tips and tricks" type of videos, as well as tutorials on how to effectively and safely use a tool, are indeed useful. (Clickspring, Joe Pie, Blondihacks, Keith Appleton, et cetera.)
There are also quite a few two-minute or shorter videos on how to open various laptops and tablets without damaging anything, and those are excellent, better than a text-with-pictures. In fact, the ones I like don't even need any audio, as the visual steps suffice.
Dave's jellybean component videos (or rather, their audio!) are similarly useful. Something you might learn from a more experienced coworker or adviser at a sequence of coffee breaks or one-on-one brainstorming sessions. Very useful.
So yes, there definitely are things best described using a video/audio; no question about that.
As I understood the topic of this thread, and how I answered, was on the statistical side: the proliferation of using videos to present advice in cases where a video is a poor format for it.
The worst negative examples I can think of are math tutorials. Presenting the needed steps with short sentences explaining what is done at each step and why allows each learner to proceed at their own pace, and concentrate on the detail they have most trouble with.
When I was at the university, I often annoyed other students by asking the lecturer why a specific solution approach was chosen. Annoyingly often the answer was a variation of "because it works", which meant that the lecture itself was useless to people like myself who assume that the mathematical proof of the method stands, and are only interested in applying the method to solve "real-world" problems. For example, I still have not found any description for choosing a solution method for partial differential equations other than "try each until one works". I
know such a method works, because ask any mathematician, and they'll show you the working method in real time; I just haven't found one who can explain what they based their choice on (except "I've seen this form before"). Even Arfken-Weber-Harris ("Mathematical Methods for Physicists") scatters the solution methods all over, as if they were completely different things –– and of course, to a mathematician the methods are different, with the only connection being that they can be applied to the same general type of problem.
The mathematicians I've complained about this just give me the side eye, O.o, o.O,
They don't seem to understand at all what I'm complaining about.
Similarly, like I mentioned in my earlier post, I do believe some people get all they want from videos. I do not, and I do not trust that all who get what they want from videos alone, actually get an understanding sufficient to apply in the real world successfully.
I do get more than a bit frustrated when those people assert that because they believe they themselves do get sufficient understanding from videos,
everyone must also, and that anyone complaining otherwise is just stuck in the old times and complaining out of contrariness.