Pardon? Calling the pot, kettle black, are we?
The 200,000km/5 year warranty is standard Harrier-National fare (it's been around since 2008, you don't have to sign up to it when buying a used car... ) and it works very well for the big parts of which you are talking about, when service is carried out at Holden - - it's not rocket science to grip this. I, (and many, other owners) have had goodwill from Holden in the past, and have nothing to claim ill against them. You had your car serviced outside Holden. And now you are flipping your lollies at them, because you believe it is something for them to fix on the house?
Now, where did this fascinating AFM failure stuff come from?? Populist opinion, or based on solid, proven fact with appropriate oversight?
Neighbour here has AFM in his wagon, and has logged 344,000km, a lot of that towing his 17ft van - - dusty and dirty, the car isn't as snazzy as today's VFII, but it is faithful and faultless. Doubtless around me there are many others giving faultless service, but not yours. Why? True, these things should last the life of the engine, but... is there something missing??
The moral to this story is that you take your car for servicing to Holden, not the piano tuner in the tin shed around the corner. You never know, play by the rules and goodwill will likely come your way.