Can you please post the image you've seen with evidence or indication of the "jetblast damage" to the scrub?
The 7 news footage above has an aerial view circling around the crash site. You can clearly see the two retardant drops in the background and the swaths cut out from the scrub leading to the wreck. It also shows more clearly that the jet has slid down the back of a small ridge line after hitting the top of it, there's what looks like jetblast marks leading up to the ridge. Post #110.