It's "professionalism". An ideology — an ism — that means not questioning/criticizing certain things. (At least not publicly, and often not even mentally either.) Yegge has a questioning mind and is communicative, but understands the limits that the ism places on him.
I don't know if I would describe the previous entry as "tearing him apart" because at the end of the day Bezos has still accomplished far more than just about anyone else we're likely to meet.
No one is perfect and it is really our ability to play to our strengths and our weaknesses that defines our ability to succeed in life.