Or another possibility, which only just occurs to me: Some of these problems are going to be problems on any project, successful or not. So if a project has no major problems, these are the ones that will be mentioned -- Game Developer postmortems require 5 pros and 5 cons.

It's like how you'll rarely hear of a software project that is refactored enough, documented enough, or that has a user interface that everyone is happy with. You could probably spend an entire project's time on artist tools, and they would still be an issue for someone.