2011 was an important year in the history of psychology, especially social psychology. First, it became apparent that one social psychologist had faked results for dozens of publications ( Second, …
Like everybody else in 2011, Kahneman trusted individual studies to be robust and replicable because they presented a statistically significant result. In hindsight it is clear that this is not the case.
Moreover, ten years have passed and if Kahneman wrote a second edition, it would be very different from the first one.