pof2MDA
You are so right. I mean only to discuss, not pass judgment. Narita video is haunting enough without adding any blame to the airframe.
After the fire, I became transfixed by the Nose Gear strut protruding into the sky from an inverted and burnt out a/c. It occurred to me that the strut was responsible for the instant Pitch up of 30 degrees, and the roll left which caused the inversion. Had the strut collapsed, the Nose would have remained on the ground, and the a/c would have slid to a stop, perhaps. The wings I believe were already broken, from the hard contact; they broke downward, their weak spot.
When the wings were reloaded due the last Pitch Up, they snapped, and the right wing presented gobs more lifting surface to the airmass, hence the rollover.
If you review the video, you might be amazed at the strength of the NoseGear. That it survived is astonishing, at least to me.