I remember reading that a number of credible witnesses who were very familiar with the airport layout commenting that there were problems well before the point at which Concorde was said to have run over the strip. IIRC, they included firemen who would not be prone to making errors and the comments related to smoke. This would be consistent with the tyres on the misaligned axle scrubbing on the tarmac. If the aircraft was still on the centreline then it begs the question of how much rudder / nose wheel input was being applied at that time.
I would disagree that there was no single factor involved. It was a multitude of failures to follow SOPs. I post here under my own name so please forgive me for calling a spade a spade but the elephant in the room here would appear to be operating culture. I would be happy to be proven wrong so go gently chaps.