And his comment twice on the blog that soft proofing doesn’t “solve” or help the prints are too dark issue, completely fails to recognize that the issue is improper display calibration! Or maybe he doesn’t even calibrate his display. That make more sense based on his take on how displays and prints correlate.
I'd say it's professional cognitive blindness in action from the so called "Expert Bias" and "Expectation Bias". When one reaches a perceived level of authority one can start to believe that one is correct by benefit of being an authority on a particular subject, and lead others to believe they are correct since they perceive them as an authority on a particular subject. They also have inherent expectations of what data they prefer and will not willingly admit they were incorrect if say, overwhelming data is displayed that shows they are indeed incorrect.
There's certainly enough biases to go around, it's important professionals keep an open mind over most (if not all) things they consider since it's easy to slip into the trap of assuming the way we're doing things now is still the best way of doing it. I'm not sure if it's worth arguing the case too strongly since their inherent biases will always argue that they are correct (especially in corner cases, post-rationalisation, etc), their egos demand it. For what it's worth, I've rarely met experts who willingly admit they were wrong...