And even luckier that nothing was waiting to cross the threshold of 27L as so often happens on the way to or from T4... Could have changed the situation somewhat...
pj2, I see what you are refering to, didn't notice it before. Marks from the tyres would make sense, judging by the final resting angle of the aircraft, it seems likely that the gear would have been twisted to the right hand side as it sheared off.