[deznu]

To be honest, you're realistically taking a lot of risk. The second the Australian government decided to change/rework how the visa works, you could be in a bit of trouble. I would personally move towards getting something more stable. Multiple citizenships are usually quite nice to have anyway.

[incompatible]

Hopefully if the Australian government changes the system, they'll grandfather it for existing residents. They've done that in the past, and New Zealanders who arrived before around 2002 are treated as permanent residents.

I do have an EU citizenship as well, and in fact I'd lose that if I became an Australian citizen.