Yep, the LHR crew get benefits but I think there are some restrictions.... possibly only for travel on QF flights. Someone else might be able to help us out with the info here. I think the restrictions are to prevent the expat crew over there on 2 year contracts living in continental Europe and commuting to LHR.
As for that Super issue
I can't believe it!! I'm really surprised the NZ government hasn't made Super compulsory for all workers.