Also ROT is losing their nonstop from Australia. Maybe they'd be better off with TT, than no flights at all.
Air NZ are pulling out because the ROT council refuses to keep it's $1 million NZD subsidy to Air NZ, citing that the money is better spent elsewhere.
Rotorua to Sydney flights canned | Stuff.co.nz
Similar thing happened to HLZ, apparently there are 5 or so councils that have a share in HLZ airport. Only two wanted to keep paying the Virgin the subsidy to keep flying in hence why services pulled.