Only The Truth
As for the regulators, I bet if this case was looked into it would confirm what most of us already know.
I suspect they have. There was no case to argue for fatigue only sleepiness - if your unsure call your BALPA rep to discuss the difference. It was a "bent" schedule and the Commander took the Company to task - well done to him I guess. But how many times has he used in discretion, how many times has he worked to max duty, max FTL limits - I suspect the TC Scheduling agreement gives him more protection than most. How many times has the Company helped him? I suspect many Pilots can sympathise with both sides - a storm in a tea cup gone horribly wrong.