Me, too! Except my experts have explained that communication is important, not brevity. In fact, brevity has led to nothing but confusion & illiteracy in schools. I was a teacher for many years. Writing & speaking clearly, can always be understood, whether short or long. But brevity does fall short when it becomes a main educational tool for teaching!
I've taught English, ESL, French as a second language, and French immersion, plus learning disabilities, after I had to stop teaching music, because the working conditions in my school district were so bad for music teachers. So, I had to retrain a bit, & never found any nonsense about using one liners, as a teacher. But lots about breaking down subjects, organizing skills systematically to build a more complex skill on a simpler skill.
My father was also a teacher. Well, he started as a teacher then became a university professor. He taught me a lot about teaching, too! I also taught 2-3 year olds in Sunday School. Parents were delighted their little toddlers came home, excited to tell a simple Bible story they heard in my class. Age appropriate, of course!
Yet, you are quoting some over glorified educators who have dummied down our curriculum & educational system so badly, you end up with functional illiterates like poor Mr. Fundaamental, who can't begin to read or understand a complex book like the Bible, let alone spell the word fundamental, let alone prophet. Although anyone can understand the gospel, if it is explained clearly to them! And a one liner won't do for that, either!
Oh, I'm working on a PhD in theology now! Stopped teaching when I got severe Rheumatoid Arthritis. How about you? Still teaching? Just curious!