IMO, the problem is not with with media chosen (e.g. video or written, public/office presentation) but with the quality of the presentation. That quality is directly related to the skill, training and preparation time of the presenter.

You can't just turn the video camera on and start rambling. I've seen videos from so-called experts that I cannot bear to watch because the actual information content per minute is near zero. Same with some written reviews. Poorly done work produces poor results in any media.

But with some thought and prior preparation, a video can be very useful, especially when describing, for example, assembly/dis-assembly of something.