Re position of the throttles - anything is possible here as to why pedestal controls are in the position they are - it is possible that the separate of fuselage sections pulled the cables sufficiently to change throttle positions...
Originally Posted by
Lord Farringdon
. . . .
I imagine the near destruction of the engines on the slide down the slope...
I don't think the aircraft "slid down the slope". There are no tell-tale tracks/ground damage* until much further down the slope. I think the aircraft "launched", not by much but enough to clear most of the slope in an arcing path until the tail hit pitching the nose down near/at the bottom of the slope.
Very sad, especially given the sense of deja-vu. A groundspeed of 176kts just prior to touchdown is significant no matter what wx conditions or runway contamination existed.
*there are two small indentations in what appears to be a "hedge-shaped" wall about half way down the slope - possible fuselage/left engine contact - hard to say.