Fundamentally what Doors said.
I am lead to believe
the company involved have very little tolerance these days for either unstable approaches even slightly below 1000', and certainly not for long landings.
Other points - Autoland fault: not impossible I guess but unlikely given the weather was good. Given the number of landings per month these guys get there's a tendency grab manual landings if circumstances permit.
Dropping a wing if floating: Not a taught or approved method of saving a floater in BA
AFAIK, in fact doing that on one of the big Boeings would very definitely result in being invited to office for a discussion about pod scrapes - not sure how vulnerable the 380 is to the same.
As far as the video is concerned I'd be wondering if there was training involved and and was Bloggs being given a bit of time to recognise the decision that had to be made, (and eventually was made) - but I don't know the actual answer.