Hi Evo!
I would never assess a PPL Skill Test glide approach during the off-aerodrome PFL alone. The reason being both stress for the applicant and possible Rule 5 problems.
The PFL is invariably the worst PPL Skill Test element. If the applicant would have survived, a Pass will result. But the efforts made by some even when I 'fail' the engine in an area as flat as a witch's are pretty dire. Hence when we return to the aerodrome I definitely want to see a 'glide approach' flown successfully!