It appears that European Business is working on old data here (the A380 clearly did have a weight problem at one time). In a AWST article this week, Airbus have confirmed that the aircraft is now almost exactly on target (actually a hint under):
AWST article
"THE $10.7-BILLION program is on budget, on time and "on" weight, Forgeard says. The last point barely passes muster--the airplane is currently just a tad under target. But he is relieved, nonetheless. Late in the A380 development phase, the program was so far off goal it prompted an across-the-board airframe weight-cutting endeavor. After weighing more than 120 metric tons of subassemblies around the many production sites, the A380's airframe now appears to be about 0.2% lighter than predicted, according to A380 engineering chief Robert Lafontan."
Dr Dave