Why should they? They were just reps on the phone talking to a guy who was reviewing superchargers, not planning for a media battle. I don't see how they would have prepared for anything other than the standard advice and it would be surprising if they did.
If the Tesla people on the phone with the reporter had just erred on the side of caution with their advice, the whole debacle would have been avoided.
Broder complaining about a couple of extra hours charging would have just come across as a nitpick.