Rerackit - You say the crews do a standard approach, this is not enough to upgrade, if a standard autoland is required. A standard autoland means approach, landing & roll out, if applicable.
The crews must make an entry in the log. I wonder how an entry in the log after a phone call from a Captain would stand up in court should on go off the runway or worse?
One of the biggest problems is getting a protected approach for the standard landing. Many crews write up that the autoland is still u/s or aircraft was off the centre line but fail to mention that the ILS was not protected, this results in a lot of trouble shooting of a defect that does not exist.
Having been in the flight deck several times for real Cat 3 approaches it, it makes you aware of what you are actually certifing the aircraft as capable to do.
If there is any doubt that the defect has not been rectified even after passing the Land 40 or other BITE tests call for a standard landing regardless of your company's procedures.
We had on 737 that kept passing all the tests but would pitch down for no obvious reason. Not very good if it happened at 50'!