Wow. A very lucky escape for all involved.
Wow. Aviation 'professionals' here advocating no evac necessary despite seeing the video evidence. Appalling. One can only hope none of whom are pilots, cabin crew or regulators. In the real world, not a single flight deck, cabin crew or ground crew member I have polled has said anything other than evacuate immediately, without question, irrespective of any other factors. Very very surprised no-one initiated their own evac in the absence of a commanded one, including any of the cabin crew. Where there is fire, get out. If in doubt, get out. Anything other than an evacuation when stationary, if confronted with a wing consumed by fire, is a gross dereliction of duty (and arguably common sense), regardless of the eventual outcome.
Anyone promoting a non-evacuation in such circumstances is unfit for the world of commercial aviation.
IMHO.