I'm not suggesting that your recommendation is off base. But I think that most people would call, and if they encounter what that poster did, they may not pursue it further, or they make think that they did what they were told to do.

It's not surprising that TSA recommends calling, but in this case the person doesn't achieve any result and may not know to ask for a CSM. They were told to call the number; they called, and that was the result. I believe that person was using an airport in TN; another poster who reported problems uses PDX.