I don't think there's any reason to believe IC's who follow the "cracked engineer" manifesto would be in the top percentile. It's basically a guideline to make people more manageable and has little to do with engineering talent.
Which is the same thing. You've also heard them called rockstars or x10 before. They are referring to the same folks, but calling them "easy to manage" is a hilarious statement.
Characteristics like "Stay optimistic at all times", "Make people feel excited and energized", and "Behave in a completely authentic way" are not really things I associated with rockstar/10x engineers (which is also a complete BS label for different reasons).
