You know how you make it known to pilots? Not by reading the news. By having the manufacturer issue an airworthiness directive. And Boeing did. And yet it did not prescribe what you're advocating. Are you suggesting that you — a non-737 pilot — know better than not only the pilots in the crashed planes, but better than Boeing as well? Their AD does not list your homegrown procedure as a remedy.

https://theaircurrent.com/wp-content/uploads/2018/11/B737-MA...

You know how else to make it known to pilots? By making it a part of their training materials. But Boeing had significant financial interest in not doing so.