Write to the CAA and ask them to clarify.
You should Bose
No Instructor is going to fly a single 'demo' circuit and let that count for revalidation and why would they, I know I don't? The pilot has sought training and why would a qualified pilot need an Instructor to manipulate the controls for them?
It couldnt count because the student did not manipulate the controls. A qualified pilot for a variety of reasons may not allow the other pilot to manipulate the controls for landing. I know of one instructor who would not allow students to handle the Apache back into Elstree at night for instance