Reading is much like eating; we all know what is healthy, but junk food sells best. In writing, trivia sells best as well. One can read as many trifles as eating potato chips. Nevertheless, you advise to write often, but a good article is like a gourmet meal. Can you write one every day?
Then, there are editorial decisions that Medium makes. They recommend articles to readers; ergo, select which ones have a chance to earn money. But you are against writing about Medium politics.
As someone who has been writing for Medium for the fifth year, I can say that your advice does not match reality.