etherate
From those pictures which show some fairly large sections, seems to suggest that the airplane was intact before impact. Lends credence to the theories of spatial disorientation postulated earlier.
Re the lightning theories, strangely enough EAL have not had happy experiences at Beirut. I recall many moons ago the first (new) B720B Ethiopian had, (ET-AAG I think) was supposedly destroyed on the ground by lightning in the 1960s. Story at the time was it was struck on landing and the net result was an uncontrolled fire which destroyed the airframe.
It makes rather sobering reading in the Ethiopian press and online journals, that many of the crew were replacements for the original crew who had their rosters changed. E.g the Captain rostered for the 409 was changed to enable attending a wedding.
Anyway with several international AAIBs input, sounds encouraging that some cause may be discovered in time.