"The author chose a simplified example to demonstrate a point." Shrug. I too can make any point if I get to choose my own contrived examples. And when a bad ex

"The author chose a simplified example to demonstrate a point." Shrug. I too can make any point if I get to choose my own contrived examples. And when a bad example is chosen, like here, any reactions will devolve into bikeshedding about the appropriateness of that example (as is clearly seen in this thread).