Thanks DCF, I was not aware the demand on the main Euro airports was so fragmented.
My interest was looking at ways of avoiding LHR on my business trips to Europe, whilst enjoying Air NZ which is one of my favourite airlines. I agree that there many options for Europe. I often fly into CPH or FRA, as the connecting flight to where I want to go to is only an hour or two. And these two airports are much better than LHR, IMHO.
Then again, there is much competition between Euro carriers flying from Asia into Europe. Air NZ would have to compete against them, reducing margins, and possibly being unprofitable if yield is not high.