Everyone has always known this. The idea was bring in the Euro and then later the economic and political integration required to make it work. The Euro has always been a Trojan horse for European integration. If this is a good or a bad thing depends on your perspective.
The problem is that when economic issues are the cause of the failure, that doesn't make the countries involved want to integrate. It makes them hate each other instead.
The euro project was always a bit of a gamble. It reminds me of the German attack through Belgium during WWI. The german military high command was criticised after the war of gambling too much trying for a knock-out victory. Using the euro to achieve european integration has a similar feeling about it.
Edit. This is not a criticism of Germany in anyway, just an feeling I have based on the Euro project being a high risk, high reward strategy.
