When you're begging for other people's money you don't get to negotiate the terms.
Why should the taxpayers in the rest of the Euro zone suffer so that the Greeks who caused their own problems don't have to face up to them? If I'm a German I have no sympathy for Greeks living well beyond their means with my money.
Greeks made their own bed, sooner or later they'll have to lie in it. Closing their eyes and pretending this isn't happening won't make things any better, in fact it will only get far worse than it will be under the austerity measures.
I don't disagree, I just think that it might be a motivation for calling for the referendum.
Unfortunately, whatever decision the Greeks end up making, it still impacts on the rest of the global economy, witness the falls in stock prices today.