"That's quite narcissistic and self-absorbed. You're really not that important and to take a letter like this and try to paint it as a "blessing in disguise" is arrogant and foolish."

He bolded a sentence in his email that read "It may seem arbitrary, but the platform an organization uses is indicative to me of a whole lot." BOLDED IT! If that doesn't scream arrogant prick, then I don't know what does. So, yes, not hiring him is a blessing in disguise. I don't want to work with someone who is that arrogant and condescending.

As I said in another reply, I wasn't suggesting that I need a compliment. I was just giving an example of a successful way to respond in order to keep the door open. A compliment won't hurt that, and in reality, it wouldn't hurt to keep the door opened.