Videos (normally) run in realtime and unless you want to miss something by skipping, you have to watch from start to finish - ie: in the video creator's timeframe.

Maybe I'm a control freak, but I want to scan a few paragraphs at a speed that suits me rather than be 'forced' to sit through a promo video from end-to-end.

It's the same reason why I'd rather read a tech article than listen to a podcast.

Watched 40 seconds. Don't have sound. Understood nothing.