The -400 guys didn't really care when the A330 was only operating AKL-LAX. Now that it is going on to JFK they are all suddenly vitally concerned over operating costs. Gimme a break....
Routes come and go. If it is profitable then the A330 will stay, if not, then they will try something else. One thing is for certain, whingeing about it on PPRUNE won't change a thing.
To the bunch of idiots at Fatty's a few weeks ago who were calling A330 pilots "scabs" for accepting the crew seat, take a long hard look at yourselves.