The reason they were produced from the 1930s to 50s was to be run in movie theaters before the main picture. Since they would run before different kinds of movies they had to entertain both kids and adults. Some of the humor in those cartoons clearly went way over the kinds heads.
It was only later that they were bundled as TV shows for children.
think foghorn leghorn with funny physical humor for the kids and subversive humor for the parents.
Sort of related -- I have friends who are immigrants to the US. They have a hard time with subtle types of humor, but some extra physical humor can sometimes let them have a good time anyway.
Edit: Apparently, Foghorn goes even further back and is a parody of the sheriff from Blue Monday Jamboree as the first Foghorn episode predates Claghorn: https://cartoonresearch.com/index.php/the-origin-of-foghorn-...
Any chance you have a source where I could learn more about this aspect of Mozart's work?
In terms of technical writing for multiple audiences, it comes immediately to vocabulary, and there, again, the analogy fails, because it is much harder to get away with using unfamiliar words. For your purposes, Churchill might be a more direct model than Mozart. Look particularly at how he deploys words of one syllable, two syllables, etc. to shape phrases and produce climactic rhythms. Occupational dialect, full of terms-of-art, is obviously an obstacle to this kind of thing.