To be fair, the podcast is produced by Europeans. Still, a British history podcast should spend more time recogning with its colonial history, and they have done at least one very very good episode on it.
The Dewey system is famously stuck in its time and culture. Look at religion, there are multiple top level cateogries for Christian religion related things, then there's "Other religions" for everything else. At this point, it's embarassing and insulting.
Well spotted!! My degree was in African Studies and I remember one of the first lectures talked about a famous Oxford historian (Hugh Trevor Roper?) who said something like - there is no history in Africa, only the wild gyrations of savage tribes..... Made me very sad.