To answer horse,
At an airfield in the London FIR, as an ATCO, and as I said aafter a second clear reminder of the action which would follow, thankfully a reversal of the initial decision to press on and make an approach.
I admint to knowing very little about the aircraft systems , actual compositin of crew or EXACT circumstances.
Only the risks I am aware of and the experience of how I have witnessed the companies operations.
Possibly best that I make no further comment and let the investigators do their job...