I referred to Seven's statement that he will never celebrate an unfair goal.
See, even if it was offside, the NZ players have nothing to be ashamed of. Yes, the ref should have disallowed it if it was offside, but here De Rossi dived. There was minor shirt pulling and when the NZ player took his hand off DDR's shirt, it was the moment when DDR decided to throw himself on the ground. That's cheating.