Curiously, Airbus should have used this opportunity to build the freighters which require none of the troublesome wiring for the entertainment systems.
Maybe politics meant they couldn't reorder the production schedule sequence.
Or maybe that wiring wasn't the sole problem.
Added: Let me rephase that last part. The A380 is a new design and there are doubtless niggling details they'd like to smooth over. The wiring delay provides time to do some/all of them. They are likely
not fall-out-of-the-sky problems.