Mmmm…. Not saying us pilots are universally great, but I have definitely seen a significant regression from the mean in many foreign cohorts. I imagine it’s due to fundamental differences in the concept of training. It’s one of the things besides war that fear based societies seem to do better than shame based societies.
Civilian pilots have to consider that they are flying in heavily congested airspace with 200 passengers in the back. They are not LARPING Chuck Yaeger in the right stuff.
There exists a concept called "regression to the mean". I don't think "regression from the mean" means anything.
There is no way pilots form all over the world could "regress to the mean". They could not have been all, or most, "above the mean". The mean would be higher then.