Is it worth watching though?

I wouldn't mind if a documentary was an interview with just 1 person if it's good. The problem with those Netflix ones is they have a handful of people repeat the same thing over and over and over. Then they pad it out even further in between those repetitions with pan and zoom of a couple of barely relevant photos or newspaper clippings or illustrations, perhaps a clip of a news anchor reporting from the relevant time etc. What would be 30 seconds in a good documentary ends up being 5 minutes and 1 episode becomes 6.

I now usually give up and read the Wikipedia page once I spot these techniques.