That's slightly in error, as I am sure BA Yield Management are only well aware. The Europe to Southern Africa routes have been quite severely hit by lower fares, starting with the Gulf Three (Emirates in particular), but also Ethiopian, Kenya and Turkish as well, all of whom now mount multi-daily services from their hubs to South Africa. Don't think that Ethiopian justifies all their substantial new 787 and A350 fleets, far more modern tech than BA, just from people travelling, whether from London or Jo'burg, to Addis Ababa.