Just had my interview. It was a horrible experience.

So, my interviewer was Kenneth Katz (a Ross alum). He graduated from Ross MBA in 1997!
Seeing his profile, I was already skeptical on the interview format. As feared, it was a very very serious interview, and he was not in a good mood. He did not smile even once.
Nothing like the 6 other MBA interviews I have given in the last days.
The questions were the same that are already on the debrief (Why MBA, Why Ross, TMAT when u worked in a team, conflict with team member/boss, setback).
He kept on complaining throughout the interview that I'm speaking too fast although I think I was conversing very fine as in other interviews. Maybe it was due to his age. He even told me that "I'm speaking fast because I might be nervous, and this is not how an interview should be given". I think it was very rude of him.
Should I email the adcom on my experience? I know it's a done case for me but at least it might help someone else.