I agree that the quick intro videos should be around 2 min, generally.
Personally (and just personally), I hate videos whose aim is to convey facts. I like encyclopedias and scientific abstracts because I read and think fast,and the videos' low information:time may be irritating.
Exception: art and music. Faster is not better.
Can you post the link proper, I'd like to view the video of 'kava compatriots'.