airline pilots are expected to fly to the conditions listed in their Opspecs, so if RVR 3 is available based on equipage then they should operate...WRT to MEL's John Tullamarine wrote and excellent post about them, ditto CAT III/CAT II ops
but he said clearly
if it's ok to fly I fly over, under or around the boundaries of this cloud
Fact: Routes to have been flown penetrated the official boundaries given by VAAC London
I would like to suggest reading the notes: they are supplementary to the official boundary charts by VAAC London. For legal purposes the VAACs have precedence.
Dispatchers have no knowledge nor training in providing updates on the situation, plus no guidelines were given from the company until TODAY, on what is acceptable or not. And on one occasion, if I had not ignored the "chief pilot" on insisting to proceed with my planned destination (I changed it to an airport outside the affected area)
just saying... I don't know what's official or not...or the extent of any truths..