I would doubt that the CAA are being vindictive. They have no powers to take such a stance but this paragraph from a previous post says it all
To imply that CAA "gets seriously upset" shows a lack of understanding on their function. The CAA is an accountable public body and their decisions can be appealed by any person directly affected by their decisions if they believe the the CAA is not exercising their powers correctly.
If the FC are not happy that the individuals are 'behaving' correctly they can appeal, and it is worth doing that. I have known a CAA inspector who overstepped the mark when it was thought he had the right to make certain unreasonable demands - but was overruled by his superiors. In those circumstances they are usually told to mend fences and help rather than hinder.
As the man says they are accountable and do not have the right to make unreasonable demands on indeterminate issues. IF, indeed, the suggestions above are themselves correct.