This video is not really about the conjunction fallacy - it's more about Occam's razor - but frankly, it presents a version of the razor that's rather muddled.

IMO, traditional presentations of the razor are of much better quality. This video seems like a very bad introduction to the topic to me. It misses the idea of compressing theories as far as the data will allow, and instead promotes a rather dumbed down "hard to vary" -> good, "easy to vary" -> bad philosophy.