Why is NZ putting up with this crap

Aussie woman who visited NZ, REFUSED covid testing while in quarantine
because she was a tinfoil hat , conspiracy theorist, covid denier .

Why was she allowed to stay? It makes no sense .
Surely the sensible thing for NZ to do would be put her on the first plane back to Aus ?

Should NZ put up with anyone coming in (kiwi or foreigner) who refuses to be covid tested in quarantine ?