I strongly suggest you add this to the post itself. If not early on, then at least at the end. My thought that "they probably let Dan sign off on this, but it would be good to know for sure" distracted from focusing on the broader point of your article.
I strongly agree with this point. I was also very distracted during this very good post wondering if Dan signed off on it before it was published. By the end I assumed that was the case, but the message would have been better served without the distraction.
I agree that personal stories like this should have the approval of everyone involved before they are published.