JD-EE
Thanks for the gentle treatment, ma'am. Guilty. I think you referred to BUSS (BackUpSpeedSystem), not fitted to 447. I do not advocate a robot of any description, it is (will always be), a potential lethal comeuppance for the Hubris of those who have more education than brains.
Machinbird. If that alone is the upshot of this tragic accident, everyone on several continents who had a hand in 447's demise deserves a flogging.
(ie: Not "noticing" Trim). For the record, may I opine that calling that THS a Trim device is abundantly fantastic? Like comparing a haircut to a decapitation.