I would like to support this observation. Obviously, they generated some language of their own, with lots of implications and references. Once you start reading it, it becomes a rabbit hole (back in the days my entry point was Adorno and Horkheimer). Words might be familiar, but their meaning is different. There was a reason to study, and the trend to render science accessible to laypeople was not yet born. Maybe even not wanted, to quote the ideas behind the concept of cultural industrial complex.