Pay him no mind. I shiver at the thought that he might be at management level and passed potential hires because they didn't not disagree in the way he liked.

If anything, you dodged a bullet from a potential job where nothing gets done correctly.

ah yes… an interviewer recently proudly presented his interview sieve… a non-policy book he swears to by a “successful professor”.

Interviews are a gamble. If he interviewer has a specific framework in mind - no matter how correct or incorrect it is - good luck hitting the right spots.