Didn't BA already write off a 747 which according to answers to my queries, did not have a moving map airport display installed in an OPT which could have, and in my opinion, most likely would have enabled the crew to avoid leaving BA with a hull loss on their records.
If so, then you would think that the world's finest airline might have similar for their other aircraft installed. Perhaps, they do. Do they? Are they considering it or is the cost and/or technological too much for them.
Safety has a price, and based on recent events of the last few years, BA is willing to pay that price, at least sometimes. Are they upgrading any aircraft without the moving map displays?