I think the folks saying 'no' are pilots that have been there, done that, and since returning to Oz, figure that it's better not to put it all at risk
The 'yes' people believe the hype, and trust that no one will bone them.
Sure, it is an adventure, but right now, how did that work out for everybody?
The Expats are always the first to be let go, and what kind of union protection are provided for you?
Look, sure, do it, but remember you are basically on your own.