When I was learning to be an instructor at the organization which wrote the book on flying instruction, we learned that the first priority was to create a good environment for learning. The current environment seems to be one of fear and intimidation.
Yes, CX can run an operation which looks like a space mission. But yet, mistakes are still made. For example look at the 400 fleet. Although there are high standards, in recent times they have had the descending orbit on finals, the 'hands off' go around and the one that nearly landed on the grass at JFK.
Someone needs to step back and take a long hard look.