As Maxwell Smart would say, "Missed it by THAT much".
Speaking of Mr. Cushman missing it by that much, here's a short fact-check on some claims he makes about D.C. Fontana's early story outlines for "The Enterprise Incident."
http://startrekfactcheck.blogspot.com/2016/05/dc-fontanas-story-outlines-for.html
How could "Balance of Terror" have established that the Romulans had stolen tech from the Klingons, when the Klingons themselves didn't even exist until "Errand of Mercy," much later in the first season?