When someone asks me to revalidate their SEP Class Rating by experience, I expect them to present their licence, logbook and form LPC SPA.
If the licence does not contain a valid JAR Class 1 or 2 medical, then I will not sign the Rating Validity Page in their licence, nor the LPC SPA.
I would have thought that it was obvious; no current JAR medical certificate at the time that revalidation is sought means no valid licence - and that means that the rating cannot be revalidated, it has to be renewed. By test. For which I charge.....