And look at this. There is another set of these lights, with parts of the aircraft lying nearby. They are near the main road, on the runaway axis, and they are working.
It is taken from the wikimapia site. Click at the small white rectangle near the road, center, left, labeled "Landing Mark".
Wikimapia, crash site
Is it really possible that they were, in the mist, mistaken for some other lights, higher up?