While the program on which Syriza was elected appears to be utterly and irrevocably broken, we can at least enjoy the prospect of maximum levels of discomfort in the rest of the EU. The Greeks have given the finger to the Troika and colonial misrule from Brussels. They've done that thing that French situationists used to recommend: 'demand the impossible'.
Take one look at what Syriza is asking for and you'll see that it's economically illiterate in the extreme. It's a mishmash of red-green demands that's heavy on the rhetoric but light on anything that is concrete. Rather than demand economic development to get people into work and freed from the shackles of the state, it's all about 'sustainability', 'a new model' etc. In other words more of the same - top-down state control and central planning in the 'common good'.
It's the same with the core demand. Tell the EU to get stuffed but stay in the Euro. The radical demand would have been to drop the Euro and tell the EU to get stuffed. The conservatives campaigned on the fear of leaving the Euro and the EU, but Syriza didn't tackled that head-on, they just insisted that they could renegotiate and stay in the Euro.
Still, better a victory for Syriza than more of the same - despite the economic illiteracy and the environmentalist orthodoxies. At the very least it has excited a mood for radical change in the population that will be hard for the bureaucrats to deal with.