You'd need to check with an Aussie ... but I believe the fact that "pilot" is on the WA list just means that employers over there can sponsor you for a (non permanent) work visa, after they've advertised locally and had no suitable applicants. Once you have that job offer, you are bound to that employer (not allowed to change jobs), and you are only allowed to work for the length of time specified in the visa. It does not necessarily lead to permanent Aussie or NZ residence.
Like I say, check with a specialist, but I would do a lot of careful research before I spent a fortune on moving to Oz on that basis.
By the way this discussion would probably be more fruitful in the "downunder" forums, nobody from Oz / NZ reads this except us handful of Asian expats.