The general public doesn't work at Holden and isn't privy to most information either.
Guarantee if you asked a hundred randoms on the street if they knew that Opel where in Australia, left in 11 months and where now backed by Holden maybe 3 if you where lucky would know.
I see your one eyed point to it all, but like I said the general public won't buy a car from a company that couldn't give a shit about this countrys car market