Already low due to the upsloping runway approach illusion plus a banking late line-up - and it's easy to dig in a wingtip.
Still doesn't explain the utter destruction of the fuselage. If it hit even remotely in approach attitude, the main gear would have softened the impact and the wreckage would be much more intact, with a possibility of many more survivors.
Just look at other approach CFIT accidents for comparison. Korean in Guam, Turkish in EHAM, Avianca in KJFK, China Airlines MD-11 in VHHH. These were all approach and landing accidents that struck the ground in somewhat of a landing attitude. All were much more intact and all were more survivable.
There is almost nothing left of this A330, haven't even seen pictures of the wings. Maybe it is the media coverage in gagged state like Libya, but I think this aircraft hit with a lot more energy than your usual approach CFIT.
Wether this energy come from the attitude, the speed, or both we will have to wait for the investigation findings (if they ever goes public).