The fuss is about the huge amount of confusion around at the moment - primarily caused by the CAA issuing a very badly worded AIC 127/1999 (White 378).
Clearly it should be well documented what is required to revalidate a Certificate of Experience. The current situation where what is required is decided by individual instructors and Joe Pilot has no way of knowing what that is, is clearly unacceptable.
I can see the benefits of continued instruction however that isn't the point. The point is that is should be well documented and well understood what is required for a Certificate of Experience and currently that is not the case.