Is it not because it's a high wing transport aircraft with plenty of high lift devices rather than because it's an An? All the other aircraft are low wing passenger aircraft.
Plenty of large, high wing heavy aircraft land pretty level without much, if any flare - C-17, B-52 are others. They also have pretty robust landing gear & no paying passengers to compain about a hard landing. Can't recollect the exact details, but saw / read something about a flat landing being preferred in the An124 / An 225 due to the multi axle landing gear