Agreed the throttles are at Idle in the picture
Yes, on a strictly physical evidential basis, you are correct. However, inferentially, you could hypothesise that they were commanded at idle, and the impact forces did not dislodge them from that idle position.
Since there has been deafening silence from the Libyans, this forum is one of the few where informed speculation can be of general assistance.
The new EU regulation on accident investigation that was published in the Official Journal of the EU on November 12th this month, will alter the nature of such investigations to make them more accessible,
Regulation (EU) No 996/2010 of the European Parliament and of the Council of 20 October 2010 on the investigation and prevention of accidents and incidents in civil aviation and repealing Directive 94/56/EC (1)