'AIMS by IBM'
What a ridiculous and semi literate rant, 'Airliners are built for efficiency when all goes normal only'
Indeed, the levels of redundancy built into modern transports, particularly the 747 allow for continued flight in the event of a loss of significant systems, up to and including powerplants. (That is why they have four!)
'Built in redundancy not to be used to cover commercial risk' It is there to cover any risk that failures require.
'Loosing' as you call it your weather radar over Africa with the ITCZ in front of you is not even remotely close to the same situation this crew had.
ETOPS is extremely relevant, as has been said, the FAA in their wisdom have no problem allowing a twin engine aircraft to fly on one for over three hours.
But protest when a four engine aircraft continues on three despite being certified to do so by them.
Or perhaps I am confused remembering 'Concord'