All the rest aside..
however the rules do not permit an individual to pass back through the security point at Gatwick.
Nor in any other Airport of the world. You leave using a dedicated corridor, that usually has a door (might be of the kind that can be opened from inside only) and might be guarded to make sure it is used for exit only. Usually this corridor is just by the side of the security check, but not necessarily have to. If the airport need to escort you through this exit, that is OK too.
as the complainant was clearly told.
He never asked to pass security backwards... again please pay more attention to what he actually wrote.
I rest my case, you would benefit from an exchange on the matter with your fellow pilots. Or it is that you have the right to creative naming, while PAX doesn't ?
it is unfortunate you had to wait 90 minutes for somebody to escort you through.
It's not just unfortunate, is unacceptable.