Facts are; master warning sounds during 1? final approach, RAT deployed(could be several reason why), gear extended on the last approach, high pitch on last approach(glide due to dual engine failure/problems or flap/slat issues), FR24 flight track and vertical profile, ATC comment, scrapes on both engines, black and not straight line but from front middle to slightly to the left(rubber from the touchdown zone and a slightly angled touchdown/xwind? I have seen similar scrape-marks on 1 of our B74 classics which had a number 3 pod-strike.
Poor lads might have landed gear up(both engines appear to be operational due exhaust visible on video), pod-strikes in ground effect on the rubbery part of the touchdown zone,slightly angled like in a xwind, GA, both engines fail/failed due damage from the pod-strikes? Fireball and post flight fire indicates fuel present on impact.
I flew the A320 a long time ago but this seems possible, a hair raising scenario....