Can we get this straight? Are we talking about aileron 'droop' or 'upfloat'? Upfloat I can understand. But I do find it extraordinary that a correspondent thinks he has spotted design flaws from a company like Boeing on a maiden flight. Arrogance in misplaced self-confidence! He could have asked rather than approach the issue so negatively (and make a plonker of himself!).
Aileron upfloat would be expected on a very high aspect-ratio wing like this. The VC10 had it 45 years ago designed in, cutting in and out at 24,000' I remember, to alleviate mid span wing bending moment. I don't know if that was the first in a big jet. But Boeing are designing wings now optimised for high altitude, long range cruise, very long and slender and bendy! No wonder they bend so much. The 747-400 and 777 wings bend more than previous models like the 747 100-300, and even the 737-800/900 are very bendy. It's how they are now.