I'm not surprised by this article, its just pushing its own anti-euro agenda.
It is a well know fact that british have no love for the euro and would love to keep the "pound" as their currency.
The euro was a good thing, particulary for southern european countries, italy, spain, greece.
In reality if it wasn't for the euro, italy would have already defaulted as argentina did some years ago.
So long live the euro, and if sacrifices are needed in order to remain in the eurozone so be it.
Maybe in the end De Gaulle was right about not wanting the UK into the european union. To much hassle.