@timur,
I'm not at all sure your assertions are accurate. Latvia went through much tougher eeconomic reforms to meet EU standards. Certainly Ireland did after their economic collapse from a real estate bubble and foolish (and possibly corrupt) decision to nationalize their bank debts (The Icelanders were wiser).They are now emerging from a long period of austerity and with renewed economic vigor.
A couple of pages back I pasted an Op ed by a number of prominent economists (many of them with Greek names) urging continued Greek economic reform. You may care to read that.
Greece has long had a weak economy plagued by a lack of economic competition, excess government regulation, the corruption that usually attends it and a very long term habit of excessive deficits and borrowing.
Your proposition that no country in Europe has made so many reforms and sacrifices as Greece is demonstrably false. They have hardly begun to make much needed reforms in the chronic overregulation, and corruption and excessive goverrnment spernding that has limited their economic performance for decades.
I'll readily agree that there has been substantial suffereing involved, but it is simply a fact that before the catastrophe of the Syriza govenment occurred, the Greek economy was beginning to grow following the reforms and the contraction that had occurred. The usual pattern is that this growth tends to accelerate during the recovery. Syriza interrupted all that.