I have noticed that a lot of young people have never learned to read fast or skim large documents.

My guess is that is the reason we're tortured with hours long videos with very little content.

Young person here! (at least I hope I still count!)

My anecdotal data point: the homepage only seemed to have a video explanation, I dropped off right then because I didn't want to watch a 2 minute video about how this works.

And it's not searchable!

When I search a page I'm looking for a description and a bit of context. You might be able to search a video thanks to autotranscripts. Then you have to scrub to be sure the keyword is in the correct context.

is that why there's so many videos these days, sounds plausible - I agree they make skimming very difficult. I think videos are cheaper to make to, just record a session and talk over it.

While I agree the numbers seem to be on the side of videos as far as I can tell.

Honestly I would like if they did both. Sometimes I like to just listen to videos while I'm doing other things and sometimes I like to be able to just skim through an article.

For "getting a feel", I find video is fine. For actual learning, I agree not so efficient, but video can be excellent for deciding whether a person is interested in digging deeper.

"efficient" is an overloaded term, and depending on your meaning it's not something everyone's pursuing.