If the current situation in NZ were in AU? I can guarantee there would be no suggestion of pilots crossing the line if requested by the company. And if just one posted that they may have no legal choice, the $h!t storm would start, name calling the whole lot, irrespective of his or her legal position!
How about we support the Kiwis in their desire to not be the lowest paid pilots in the region. Maybe some solidarity could help right now. I 99% sure it won't come to industrial action. VA and the pilot group will sort a compromise that is acceptable to both parties. JB is not the type to allow this type of stuff to develop.
Good luck to them, they have 100% of my support. For what it's worth, if I'm asked to operate on the Tasman or South Pacific as a result of action, I for one won't be compromising the process. URTI, sick, what ever it takes.
Good luck.