54, you are, I believe, holding a few misconceptions. Airliners are designed so the last bit of the wing to stall is the wingtip. There is a discussion on this in TECH LOG-'Windshear Question'. You don't want the wingtip to stall first because it would give a powerful nose up moment at a disastrous time, and if asymmetric would turn you upside down. So you see design tricks on most aeroplanes to prevent the tips stalling before the wing:
1- reduced sweepback towards the tips
2- reduced incidence
The 747 most certainly remains very controllable in a stall- it wallows and behaves very well.
We are starting to chase our tails with this discussion, with a massive amount of irrelevancies being brought in! There was no stall. It was nothing more than a powerful wake encounter- something experienced by most professional pilots. It's a matter of technique.