Don't think you need to invoke the Almighty BA/BY.
I blame the historic (hysteric?) FJ VSO cadre for utterly failing to understand big-jet ops and not helping to bring the heavies into the late 20th century!. Vested interests (????) also helped throw sand into the chances of getting Brize and the RAF TriStar upto CAT III (for 25 years!)
. Now, do not mention the TriStar Autoland accident. That was a pure human factors/crew error and should not have influenced RAF policy but, it was used as ammunition by luddites within the RAF. What was that...? Brize not suitable for CAT III qualification, like saying Heathrow is unsuitable, just depends on the will and the price!
OAP