Looking closely at the photo:
a) The right engine does appear to be shut down.
b) Going by the position of the shadows of other aeroplanes, trucks, etc. the ATR looks to be over the grass already, *before* touchdown. This could be the effects of foreshortening, etc. but given the way shadows elsewhere are almost directly under the objects causing them, I'd estimate the time to be not far away from solar noon, i.e. about 1300-1400L.
The height above the ground looks about 10-15', so it would be difficult to get back over the paved surface before touchdown. Pure speculation but it would seem that they might have actually landed on the grass...
