That's mostly true of humans though. They almost always give average answers. That works out because 1) most of the work that needs to be done is repetitive, not new so average answers are okay 2) the solution space that has been explored by humans is not convex, so average answers will still hit unexplored territory most of the time

Absolutely! You can communicate with without (or with minimal) creativity. It’s not required in most cases. So AI is definitely very useful, and it can ape creativity better and better, but it will always be “faking it”.