I was just reading the news and tried to find some sense in it ...
Obviously the translation from englisch to german and back to english removed most of the substance from the statement.
´Spiegel´ obviously refers to the Rear End Test (RET), which is not the test of the very last 4 meters of the plane, but is a special test setup which includes the fuselage aft of the rear pressure bulkhead and includes the entire vertical tail.
Airbus has recently given the statement, that nothing went wrong and all tests are within the first flight schedule.