Athinaios the scenario you pose is due to the governments of PASOK and ND, I dont understand what it has to do with the current government.
You don't understand, Tsipras and Varoufakis have repeatedly told the Troika that they want to pay back the debts however Greece is physically unable too do so as the debt is now unserviceable and unless relief is given it wont be. It is in the Troikas interests to provide debt relief similar to what Germany received after WW2 to help them rebuild.