fast flowing river
For a long time we have had a flood of junior instructors, who were often told "you get paid by the flying hour, and you have to go and beat the bushes to find your own students if you want to fly."
So we have had almost a pyramid scheme and a lot of dissatisfied, transient instructors, many of whom did not ever want to be there.
I am not surprised that FTDK and others are careful who they fly with.
There is a need for structural change in the industry so we can have some stable, reliable experienced people and organisations that are properly rewarding for those who dedicate themselves to this work.