I'm certainly no expert, but with all the hypothesising and analysing in this interesting thread, something made me think of the following;
If the *wing* is on fire then surely the "basic" aerodynamics of the airfoil have been compromised? Regardless of the fact that structurally there were problems, and a loss of thrust from the engine (s) caused a stall or loss of control, Mr Bernouli's principle must rely on there being air creating differences in pressure and thus - lift. But if air cannot flow over a wing, because it is engulfed in flames, don't we have a major factor missing from the equation?
Then a changing c of g, weight loss as the fuel burns/escapes and structural damage are also factors, not to mention loss of thrust, gear down, tailwind, AF 744 with dignitaries in view, wheel spacers missing, AD's not complied with, overweight (have I missed anything?)
Just a thought. Interested if this would be something taken into account?