why would you not consider me to be discussing anything but approved establishments within the JAR community?
Possibly because your first sentence described a typical UK scenario of small friendly clubs with an FIC instructor, something not commonly found in the rest of Europe! But you are right, we have to consider all JAA FIC as the UK accepts anyone with a JAA rating.
I wonder how many have encountered FIs on Spanish JAA licences, who have no Restriction on their FI rating, they are required to administer it themselves!