Just tactics
Burned cabling? That was due to their showers in the first class? Destroyed interios? Passengers taking souvenirs. Engine Faults? If you read the german article you'll notice it is about panels - most probably ground handlers not being careful enough or whatever ... if the plane works for SQ and QF, I rather see the whining due to:
"A source close to Airbus told AFP on Thursday Emirates was seeking a delay in the delivery of several of the long-haul A380 superjumbo jets because of financing difficulties. "
So it's all part of making some noise in the market to get better conditions on their renegotiations ....