You know, this is interesting for me. I blog for some companies that help with video marketing, and the BEST advice is to always create short and punchy videos that catch attention in the first couple of seconds to keep an audience. Obviously, if your theory is true, video makers are doing something wrong.
However, I do see video makers filling up time with a bunch of boring crap in the beginning. Maybe that's OK for an instructional video, but it's a bad way to market. This gives me an idea for a post about video marketing, so thanks. <3
It's like websites, you have 3 seconds to capture someone's attention. Short punchy videos are extremely powerful due to this, but a majority of videos are 1 minute or longer and this constant applies consistently in my experience.
Anyway, I published some stats that sort of prove your premise. Most videos don't retain an audience until the end or even for very many seconds. If people aren't getting the traction they want from longer videos, a solution could be to shorten them up but make them more direct. Thanks for the inspiration!
https://steemit.com/video/@theinsideout/video-marketing-succes-tip-longer-videos-aren-t-more-effective-videos