It's not my rant: my sources were in JetConnect when the letters were written (ex-Ansett 737 blokes wanting to pay some bills). They told me about the letter, the response, and the childish "hat" attitude over a cuppla beers. Go and ask the AIPA President at the time – I'm told by QF mates, you will have little trouble believing the ranter if you do.
I don't agree with the ethics of the outsourcing/QF spin (lies) situation, but you can't blame the Kiwi ranter for wanting to balance the satire with a bit of background – albeit, probably over one too-many wines.
The point is, that AIPA did indeed fob them off in the early days; there's no point denying it. Just understand it pissed them off, and that it's relevant before you open fire. You might adjust your aim a little if you know some of the history.